A screening device for accelerator production

Abstract

The utility model discloses a screening device for quick -setting agent production, including screening box, and the inside screening box is equipped with the screening board of inclined arrangement, and the bottom fixed of screening board is equipped with vibration motor, and the feed end of screening box is connected with the pretreatment dispersing mechanism for dispersing the agglomerate quick -setting agent master batch particle of agglomerate, the inside connection front and back sidewall of screening box and located the sliding of screening board top is equipped with the clearing of the jammed component for clearing the screening board, the clearing of the jammed component includes clearing of the jammed roller brush and the linkage component of drive clearing of the jammed roller brush rotation, the utility model discloses compared with prior art advantage lies in: through setting pretreatment dispersing mechanism, can pre -dispersing the agglomerate in quick -setting agent master batch, avoid agglomerate and jam the screening board mesh, and the clearing of the jammed component is through the cooperation of sliding block and sliding slot, and the sliding process of realizing the autorotation of roller brush is combined with gear and rack linkage, need not to dismount to clear the screening board fast, and the operation is simple, and the efficiency is high.

Description

Technical Field

[0001] This utility model relates to the technical field of accelerator processing equipment, specifically to a screening device for the production of accelerators. Background Technology

[0002] Accelerators are key admixtures in concrete construction. The uniformity of their particle size directly affects the setting speed and construction quality of concrete. Therefore, they need to be screened to remove impurities and graded to ensure that the particles meet the required specifications. In actual production, accelerator masterbatch is prone to agglomeration due to moisture, storage compression, etc. If it directly enters the screening process, it will not only clog the screening equipment mesh but also lead to incomplete screening, affecting product quality.

[0003] Traditional screening devices often rely on manual disassembly and cleaning of the screening plates, which is cumbersome and inefficient. In addition, some devices lack targeted pre-treatment mechanisms for clumping, exacerbating the screening problem and making it difficult to meet the screening requirements for large-scale production of accelerators. Utility Model Content

[0004] (I) Technical Issues

[0005] The present invention aims to provide a screening device for the production of quick-setting agents with a pre-treatment function for agglomeration and easy unblocking, thereby solving the problems of lack of agglomeration treatment and inconvenient unblocking of screening plates in traditional devices.

[0006] (II) Technical Content

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a screening device for the production of accelerators, including a screening box, an inclined screening plate inside the screening box, a vibration motor fixedly installed at the bottom of the screening plate, a pretreatment and dispersing mechanism for breaking up agglomerated accelerator masterbatch particles connected to the feed end of the screening box, the mesh size of the screening plate gradually changing and partitioned, the mesh size at the top being the smallest and the mesh size at the bottom being the largest, and multiple vertical partitions fixedly installed on the bottom surface of the screening box dividing the bottom space of the screening box into multiple storage chambers corresponding to the mesh partitions, and an outlet is provided at the bottom of the outer side of the storage chamber; a cleaning component for cleaning the screening plate is slidably installed inside the screening box, connected to the front and rear side walls and located above the screening plate, the cleaning component including a cleaning roller brush and a linkage component for driving the cleaning roller brush to rotate.

[0008] Furthermore, the screening box is provided with sliding grooves on the front and rear side walls and above the screening plate. H-shaped sliders are slidably provided inside the sliding grooves. The unblocking roller brush is rotatably connected between the sliders, and a handle is fixedly provided on the outside of the slider.

[0009] Furthermore, the linkage component includes a rack fixedly disposed on the inner wall of the screening box, and a gear fixedly disposed on the central shaft of the unclogging roller brush, the gear meshing with the rack and the gear being located below the rack.

[0010] Furthermore, the dispersing mechanism includes a pretreatment chamber, inside which a stirrer is rotatably mounted, and outside the pretreatment chamber, a motor is fixedly mounted to drive the stirrer to rotate.

[0011] Furthermore, a hopper is fixedly provided at the feed inlet at the upper end of the pretreatment chamber.

[0012] Furthermore, the screening box has an impurity outlet on its side, located at the lowest point of the screening plate.

[0013] Furthermore, self-locking casters are fixed at the four corners of the bottom of the screening box.

[0014] (III) Technical Effects

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1. By setting a pre-treatment dispersing mechanism, the lumps in the quick-setting agent masterbatch can be dispersed in advance to avoid lumps clogging the screen plate mesh. The unclogging component uses a slider and a chute to work together, and combined with gear and rack linkage to realize the self-rotation of the roller brush during the sliding process. The screen plate can be cleaned quickly without disassembly. It is easy to operate and highly efficient.

[0017] 2. When not in use, the cleaning roller brush can be fixed above the screening plate without affecting normal screening operations. The screen plate has a gradually changing mesh size that corresponds one-to-one with the storage chamber, enabling particle grading, screening, and collection, and adapting to the diverse needs of accelerator production. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a screening device for the production of accelerators according to this utility model. Figure 1 .

[0019] Figure 2 This is a three-dimensional structural diagram of a screening device for the production of accelerators according to this utility model. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the main structure of a screening device for the production of quick-setting agents according to this utility model.

[0021] Figure 4 This is a left-side view of a screening device for the production of quick-setting agents according to this utility model.

[0022] Figure 5 This is a top view schematic diagram of a screening device for the production of accelerators according to this utility model.

[0023] Figure 6 This is a schematic cross-sectional view of a screening device for the production of accelerators according to this utility model. Figure 1 .

[0024] Figure 7 This is a schematic cross-sectional view of a screening device for the production of accelerators according to this utility model. Figure 2 .

[0025] As shown in the figure: 1. Screening box; 2. Screening plate; 3. Vibrating motor; 4. Vertical partition; 5. Storage chamber; 6. Outlet; 7. Unblocking assembly; 8. Dispersing mechanism; 9. Slide chute; 10. Sliding block; 11. Handle; 12. Rack; 13. Gear; 14. Hopper; 15. Impurity outlet; 16. Self-locking caster wheel; 17. Ear plate; 71. Unblocking roller brush; 81. Pretreatment chamber; 82. Agitator; 83. Motor. Detailed Implementation

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] Combined with appendix Figure 1 To be continued Figure 7A screening device for the production of accelerators includes a screening box 1, an inclined screening plate 2 inside the screening box 1, a vibration motor 3 fixedly mounted on the bottom of the screening plate 2, a pretreatment and dispersing mechanism 8 for breaking up agglomerated accelerator masterbatch particles connected to the feed end of the screening box 1, the mesh size on the screening plate 2 gradually changing and partitioned, with the smallest mesh size at the top and the largest mesh size at the bottom, and multiple vertical partitions 4 fixedly mounted on the bottom surface of the screening box 1 dividing the bottom space of the screening box 1 into multiple storage chambers 5 corresponding to the mesh partitions, with an outlet 6 at the bottom of the outer side of the storage chamber 5; a cleaning assembly 7 for cleaning the screening plate 2 is slidably mounted inside the screening box 1, connected to the front and rear side walls and located above the screening plate 2, the cleaning assembly 7 including a cleaning roller brush 71 and a linkage component for driving the cleaning roller brush 71 to rotate.

[0030] One of the sliders 10 is fixedly provided with an ear plate 17. The side wall of the screening box 1 is provided with a screw hole near the uppermost position of the slide 9. When the unblocking roller brush 71 slides to the uppermost position, the ear plate 17 is connected to the screw hole by threads to fix the position of the unblocking roller brush 71. When the unblocking roller brush is not in use, it is at the uppermost position.

[0031] In this embodiment, as a preferred technical solution, the screening box 1 is provided with sliding grooves 9 on both the front and rear side walls and above the screening plate 2. H-shaped sliders 10 are slidably provided inside the sliding grooves 9. The unblocking roller brush 71 is rotatably connected between the sliders 10. A handle 11 is fixedly provided on the outside of the sliders 10. The linkage component includes a rack 12 fixedly provided on the inner wall of the screening box 1, and also includes a gear 13 fixedly provided on the central shaft of the unblocking roller brush 71. The gear 13 meshes with the rack 12 and is located below the rack.

[0032] In this embodiment, as a preferred technical solution, the dispersing mechanism 8 includes a pretreatment chamber 81, a stirrer 82 is rotatably installed inside the pretreatment chamber 81, a motor 83 for driving the stirrer 82 to rotate is fixed outside the pretreatment chamber 81, a hopper 14 is fixedly installed at the upper feed inlet of the pretreatment chamber 81, an impurity outlet 15 is provided on the side of the screening box 1 and at the lowest point of the screening plate 2, and self-locking casters 16 are fixedly installed at the four corners of the bottom of the screening box 1.

[0033] The working principle of this utility model is as follows: First, the pretreatment and dispersing mechanism 8 breaks up the agglomerates of the quick-setting agent masterbatch, eliminating the interference of agglomerates on screening; then, the vibration motor 3 drives the inclined screening plate 2 to vibrate, and combined with the gradually changing partitioned mesh on the screening plate 2, the quick-setting agent particles of different sizes slide down the screening plate 2 under the action of gravity and vibration, realizing step-by-step grading and screening; finally, the graded collection is completed through the storage chamber 5 corresponding to the mesh partitions. The unblocking component 7 uses the sliding cooperation of the slider 10 and the slide groove 9, combined with the meshing transmission of the gear 13 and the rack 12, to realize the self-rotation of the unblocking roller brush 71 during the sliding process, which can clean the blockage of the mesh of the screening plate 2 without disassembly.

[0034] The working process of this utility model is as follows:

[0035] 1. Move the equipment to the designated position and lock it using the self-locking casters 16 at the bottom of the screening box 1 to ensure equipment stability. Feed the accelerator masterbatch to be screened through the hopper 14 at the top of the pretreatment chamber 81. The masterbatch enters the pretreatment chamber 81 along the hopper 14. At this time, the unblocking roller brush 71 is fixed at the top of the chute 9 by the threaded connection between the ear plate 17 and the screw hole on the side wall of the screening box 1, avoiding interference with the screening operation.

[0036] 2. Start the motor 83 of the pretreatment dispersing mechanism 8. The motor 83 drives the agitator 82 in the pretreatment chamber 81 to rotate. The agitator 82 stirs and beats the added quick-setting agent masterbatch, and completely breaks up the lumps formed due to moisture and storage compression. The processed loose masterbatch falls from the discharge end of the pretreatment chamber 81 into the screening box 1 and directly contacts the inclined screening plate 2.

[0037] 3. Simultaneously start the vibration motor 3 at the bottom of the screening plate 2. The vibration motor 3 drives the screening plate 2 to generate high-frequency vibration. Under the action of vibration and its own gravity, the loose quick-setting agent masterbatch slides from the top to the bottom along the inclined screening plate 2. Since the mesh of the screening plate 2 is set in a zoned and gradually changing pattern, particles with a diameter smaller than the uppermost mesh will pass through the mesh first and fall into the first storage chamber 5 at the bottom of the screening box 1; particles with a diameter between the upper and middle mesh will pass through the middle mesh during the descent and fall into the corresponding second storage chamber 5; and so on, until the largest qualified particles finally pass through the bottom mesh and fall into the last storage chamber 5, while impurities that cannot pass through any mesh continue to slide down to the lowest point of the screening plate 2 and are discharged from the impurity outlet 15 on the side of the screening box 1.

[0038] 4. During the screening process, quick-setting agent particles of different sizes are stored in their respective storage chambers 5. After the screening operation is completed or the storage chambers 5 are filled, the outlets 6 at the bottom of the outer side of each storage chamber 5 are opened to collect the graded quick-setting agent particles separately, so that they can be used as needed.

[0039] 5. If a decrease in screening efficiency is observed during the screening process, it indicates that the mesh of the screening plate 2 is clogged. After completing one batch of screening, loosen the threaded connection between the ear plate 17 and the screw hole on the side wall of the screening box 1. Hold the handle 11 on the outside of the slider 10 and slide it slowly from top to bottom along the sliding groove 9 on the front and rear side walls of the screening box 1. During the sliding process, the gear 13 on the central shaft of the cleaning roller brush 71 meshes with the rack 12 on the inner wall of the screening box 1, driving the cleaning roller brush 71 to rotate. The rotating roller brush cleans the mesh of the screening plate 2, removing the clogged particles or impurities. After cleaning, push the handle 11 in the opposite direction to slide the cleaning roller brush 71 to the top of the sliding groove 9, and fix its position again through the threaded connection between the ear plate 17 and the screw hole for use in the next screening operation.

[0040] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A screening device for the production of accelerators, comprising a screening box (1), wherein an inclined screening plate (2) is provided inside the screening box (1), and a vibrating motor (3) is fixedly provided at the bottom of the screening plate (2), characterized in that: The feed end of the screening box (1) is connected to a pretreatment dispersing mechanism (8) for dispersing agglomerated quick-setting agent masterbatch particles. The mesh size on the screening plate (2) gradually changes and is divided into sections. The mesh size at the top is the smallest and the mesh size at the bottom is the largest. The bottom surface of the screening box (1) is fixed with multiple vertical partitions (4) to divide the bottom space of the screening box (1) into multiple storage chambers (5) corresponding to the mesh partitions. The bottom of the storage chamber (5) is provided with an outlet (6). The screening box (1) is internally connected to the front and rear side walls and is slidably provided above the screening plate (2) for cleaning the screening plate (2). The cleaning component (7) includes a cleaning roller brush (71) and a linkage component that drives the cleaning roller brush (71) to rotate.

2. The screening device for the production of accelerators according to claim 1, characterized in that, The screening box (1) is provided with sliding grooves (9) on the front and rear side walls and above the screening plate (2). H-shaped sliders (10) are slidably provided inside the sliding grooves (9). The unblocking roller brush (71) is rotatably connected between the sliders (10). A handle (11) is fixedly provided on the outside of the slider (10).

3. A screening device for the production of accelerators according to claim 1, characterized in that, The linkage assembly includes a rack (12) fixedly disposed on the inner wall of the screening box (1), and a gear (13) fixedly disposed on the central shaft of the unclogging roller brush (71).

4. A screening device for the production of accelerators according to claim 1, characterized in that, The dispersing mechanism (8) includes a pretreatment chamber (81), a stirrer (82) is rotatably installed inside the pretreatment chamber (81), and a motor (83) is fixedly installed outside the pretreatment chamber (81).

5. A screening device for the production of accelerators according to claim 4, characterized in that, A hopper (14) is fixedly provided at the upper feed inlet of the pretreatment chamber (81).

6. A screening device for the production of accelerators according to claim 1, characterized in that, The screening box (1) has an impurity outlet (15) on its side and at the lowest point of the screening plate (2).

7. A screening device for the production of accelerators according to claim 6, characterized in that, The screening box (1) is equipped with self-locking casters (16) at the four corners of its bottom.

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