A cement fines screening device

Abstract

The utility model relates to cement fine powder screening technical field provides a cement fine powder screening device, including the blanking structure: blanking structure coaxially installs in the top of screening structure, screening structure: screening structure includes sieve box, vibrator and screen cloth, vibrator fixedly connected in the top both ends of sieve box, and screen cloth fixedly connected in the connecting end of vibrator, blanking structure: blanking structure includes the machine case, blanking frame, through groove, fixed block and guide plate, the utility model discloses is provided with blanking mechanism, through the auxiliary cooperation between machine case and blanking frame, when the storage tank slides to the top of guide plate, can make the meshing connection between the tooth block and connecting gear, thereby can make the fixed plate knock fixed block, can carry out the rationed blanking of cement fine powder simultaneously, effectively prevent cement fine powder from adhering in the blanking, avoid the cement fine powder and cause the blockage in the blanking.

Description

Technical Field

[0001] This utility model relates to the field of cement fine powder screening technology, and in particular to a cement fine powder screening device. Background Technology

[0002] Cement fine powder screening device is a special screening equipment used to separate coarse particles and impurities in cement fine powder to ensure that the powder fineness is achieved. It is used in the finished product grading, raw material pretreatment or recycling of cement production. Because cement powder has the characteristics of small particle size, large specific surface area, and easy moisture absorption and agglomeration, it is very easy to adhere to the contact surfaces such as the feeding channel and discharge port during the feeding process. This not only causes screen hole blockage and reduced feeding efficiency, but also leads to material residue and waste, increasing cleaning and maintenance costs. The feeding structure of the existing screening device lacks a targeted anti-adhesion design, making it difficult to effectively solve the above problems, which affects the continuity, economy and environmental protection of cement production. Utility Model Content

[0003] The purpose of this invention is to provide a cement fine powder screening device to solve the problem that existing cement fine powder screening devices tend to have cement fine powder adhering to the feeding point during the feeding process, causing blockages or waste of resources.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a cement fine powder screening device, including a screening structure; Feeding structure: The feeding structure is coaxially mounted on the top of the screening structure; Screening structure: The screening structure includes a screen box, a vibrator, and a screen. The vibrator is fixedly connected to both ends of the top of the screen box, and the screen is fixedly connected to the connecting end of the vibrator. The material feeding structure includes a chassis, a material feeding frame, a through slot, a fixing block, and a guide plate; The machine box is fixedly connected to the top rear of the screen box, the feeding frame is fixedly connected to the top of the machine box, the through slot is opened on both sides of the outer wall of the machine box, the guide plate is fixedly connected to the inner front side of the machine box, and the fixing block is fixedly connected to both sides of the guide plate.

[0005] Preferably, the feeding structure further includes a storage bin, a toothed block, a connecting gear, a fixing plate, and an electric telescopic rod; The electric telescopic rod is fixedly connected to the rear of the machine box, the storage box is fixedly connected to the connecting end of the electric telescopic rod, the toothed block is fixedly connected to both sides of the outer wall of the storage box, the connecting gear is rotatably connected to both sides of the outer wall of the machine box, and the fixing plate is fixedly connected to one side of the connecting gear.

[0006] Preferably, the tooth block and the connecting gear are meshing, and the tooth block is slidably connected inside the through groove.

[0007] Preferably, the feeding frame and the storage box are arranged on the same central axis, and one end of the fixing plate is attached to the outside of the fixing block.

[0008] Preferably, the connection between the machine casing and the screen box is through-hole, and the tilt angle of the guide plate is forty-five degrees.

[0009] Preferably, it also includes a retrieval structure; The retrieval structure includes a collection groove, a toothed plate, a frame, and a connecting groove; The collection troughs are located at both ends of the sieve box, the toothed plates are fixedly connected to both sides of the inner wall of the collection troughs, the frame is slidably connected to the inside of the collection troughs, and the connecting grooves are located on both sides of the outer wall of the frame.

[0010] Preferably, the retrieval structure further includes a rotating gear, a threaded rod, a screw cylinder, a placement plate, and a collection frame; The rotating gear is rotatably connected to the inside of the frame, the threaded rod is fixedly connected to the top of the rotating gear, the screw barrel is threadedly connected to the top of the threaded rod, the placement plate is fixedly connected to the top of the screw barrel, and the collection frame is placed on the top of the placement plate.

[0011] The cement fine powder screening device provided by this utility model has the following advantages: With the feeding mechanism and the auxiliary cooperation between the machine box and the feeding frame, when the storage box slides above the guide plate, the toothed block and the connecting gear can mesh and connect, so that the fixed plate can strike the fixed block. This can quantitatively feed cement powder while effectively preventing cement powder from adhering to the feeding point and avoiding blockage caused by cement powder at the feeding point. With a retrieval mechanism and the auxiliary cooperation between the collection groove and the toothed plate, when the worker pulls the frame outward, the rotating gear and the toothed plate can mesh together, allowing the screw barrel to be guided upward along the threaded trajectory outside the screw rod inside the frame. This helps the worker to easily retrieve the collection frame and avoids the worker having to repeatedly bend over to retrieve it. Attached Figure Description

[0012] Figure 1 This is an axonometric view of the present invention; Figure 2 This is a three-dimensional schematic diagram of the frame of this utility model; Figure 3 This is a three-dimensional sectional view of the chassis of this utility model; Figure 4 This is a schematic diagram of the internal structure of the collection tank of this utility model; Figure 5 This is a three-dimensional schematic diagram of the picking structure component of this utility model.

[0013] Explanation of the reference numerals in the figure: 11. Screen box; 12. Vibrator; 13. Screen mesh; 21. Chassis; 22. Feeding frame; 23. Through slot; 24. Storage bin; 25. Tooth block; 26. Connecting gear; 27. Fixing plate; 28. Fixing block; 29. ​​Guide plate; 210. Electric telescopic rod; 31. Collection trough; 32. Toothed plate; 33. Frame; 34. Connecting groove; 35. Rotating gear; 36. Threaded rod; 37. Screw barrel; 38. Placement plate; 39. Collection frame. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-5 The present invention provides a cement fine powder screening device, including a screening structure; Feeding structure: The feeding structure is coaxially mounted on the top of the screening structure; Screening structure: The screening structure includes a screen box 11, a vibrator 12, and a screen 13; The vibrator 12 is fixedly connected to both ends of the top of the screen box 11, and the screen 13 is fixedly connected to the connecting end of the vibrator 12; The vibrator 12 is activated to drive the screen 13 to screen the cement powder inside the screen box 11. The material feeding structure includes a chassis 21, a material feeding frame 22, a through groove 23, a fixing block 28, and a guide plate 29. The casing 21 is fixedly connected to the top rear of the screen box 11, the feeding frame 22 is fixedly connected to the top of the casing 21, the through groove 23 is opened on both sides of the outer wall of the casing 21, the guide plate 29 is fixedly connected to the inner front side of the casing 21, and the fixing block 28 is fixedly connected to both sides of the guide plate 29. The material feeding structure also includes a storage box 24, a toothed block 25, a connecting gear 26, a fixing plate 27, and an electric telescopic rod 210; The electric telescopic rod 210 is fixedly connected to the rear of the housing 21, the storage box 24 is fixedly connected to the connecting end of the electric telescopic rod 210, the tooth block 25 is fixedly connected to both sides of the outer wall of the storage box 24, the connecting gear 26 is rotatably connected to both sides of the outer wall of the housing 21, and the fixing plate 27 is fixedly connected to one side of the connecting gear 26.

[0016] The toothed block 25 and the connecting gear 26 are meshed. The toothed block 25 is slidably connected inside the through groove 23. The feeding frame 22 and the storage box 24 are set on the same central axis. One end of the fixing plate 27 is attached to the outside of the fixing block 28. The connection between the machine box 21 and the screen box 11 is through each other. The guide plate 29 has an inclination angle of 45 degrees. The machine box 21 is used to open the through groove 23. With the auxiliary cooperation between the chassis 21 and the unloading frame 22, when the storage box 24 slides above the guide plate 29, the toothed block 25 and the connecting gear 26 can mesh and connect, so that the fixing plate 27 can strike the fixing block 28. Working principle: When feeding cement fine powder; First, the fine cement powder is poured into the machine box 21 through the feeding frame 22. By starting the electric telescopic rod 210, the storage box 24 can be pushed to slide inside the machine box 21. Next, when the storage box 24 slides above the guide plate 29, the cement powder stored inside the storage box 24 can be discharged into the screen box 11 through the guide plate 29. Since the toothed block 25 is installed through the through groove 23 on the outside of the machine box 21, the storage box 24 can slide while the toothed block 25 slides, and the toothed block 25 and the connecting gear 26 are meshed. When the storage box 24 is reset, the meshing connection between the toothed block 25 and the connecting gear 26 can be released, the fixing plate 27 can be reset and the fixing block 28 can be knocked. The vibration generated by the knocking can shake off the cement powder attached to the surface of the guide plate 29. This step allows for the precise metering of cement powder while effectively preventing it from adhering to the feeding point and causing blockages.

[0017] Please see Figure 4-5 As shown, this embodiment, based on the above embodiment, also includes a picking structure; The retrieval structure includes a collection groove 31, a toothed plate 32, a frame 33, and a connecting groove 34; The collection trough 31 is located at both ends of the sieve box 11, the toothed plate 32 is fixedly connected to both sides of the inner wall of the collection trough 31, the frame 33 is slidably connected to the inside of the collection trough 31, and the connecting groove 34 is located on both sides of the outer wall of the frame 33.

[0018] The retrieval structure also includes a rotating gear 35, a threaded rod 36, a screw barrel 37, a placement plate 38, and a collection frame 39; Rotating gear 35 is rotatably connected to the inside of frame 33, threaded rod 36 is fixedly connected to the top of rotating gear 35, screw barrel 37 is threadedly connected to the top of threaded rod 36, placement plate 38 is fixedly connected to the top of screw barrel 37, and collection frame 39 is placed on the top of placement plate 38. The frame 33 is used to open the connecting groove 34, and the toothed plate 32 extends into the interior of the frame 33 through the connecting groove 34. The rotating gear 35 and the toothed plate 32 are meshed. With the auxiliary cooperation between the collection groove 31 and the toothed plate 32, when the worker pulls the frame 33 outward, the rotating gear 35 and the toothed plate 32 can mesh and connect, so that the screw barrel 37 can be guided to rise inside the frame 33 along the threaded trajectory outside the threaded rod 36. Working principle: When workers collect the fine cement powder; First, pull out the frame 33 inside the collection groove 31. Since the toothed plate 32 extends into the inside of the frame 33 through the connecting groove 34, the frame 33 can slide outward while the rotating gear 35 and the toothed plate 32 mesh and connect. Next, the rotating gear 35 can be rotated to drive the threaded rod 36 to rotate, so that the screw barrel 37 can be guided to rise inside the frame 33 along the threaded track outside the threaded rod 36, so that the staff can easily pick up the collection box 39 placed on the top of the placement plate 38. This step helps staff to easily pick up the collection box 39, avoiding the need for staff to repeatedly bend over to pick it up.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cement fine powder screening device, comprising a screening structure, characterized in that: Feeding structure: The feeding structure is coaxially mounted on the top of the screening structure; Screening structure: The screening structure includes a screen box (11), a vibrator (12) and a screen (13). The vibrator (12) is fixedly connected to the top two ends of the sieve box (11), and the sieve (13) is fixedly connected to the connecting end of the vibrator (12); Material feeding structure: The material feeding structure includes a chassis (21), a material feeding frame (22), a through groove (23), a fixing block (28), and a guide plate (29); The machine box (21) is fixedly connected to the rear top of the screen box (11), the feeding frame (22) is fixedly connected to the top of the machine box (21), the through groove (23) is opened on both sides of the outer wall of the machine box (21), the guide plate (29) is fixedly connected to the front inside of the machine box (21), and the fixing block (28) is fixedly connected to both sides of the guide plate (29).

2. The cement fine powder screening device according to claim 1, characterized in that, The feeding structure also includes a storage box (24), a toothed block (25), a connecting gear (26), a fixing plate (27), and an electric telescopic rod (210). The electric telescopic rod (210) is fixedly connected to the rear of the machine box (21), the storage box (24) is fixedly connected to the connecting end of the electric telescopic rod (210), the tooth block (25) is fixedly connected to both sides of the outer wall of the storage box (24), the connecting gear (26) is rotatably connected to both sides of the outer wall of the machine box (21), and the fixing plate (27) is fixedly connected to one side of the connecting gear (26).

3. A cement fine powder screening device according to claim 2, characterized in that, The tooth block (25) and the connecting gear (26) are meshed, and the tooth block (25) is slidably connected inside the through groove (23).

4. A cement fine powder screening device according to claim 2, characterized in that, The feeding frame (22) and the storage box (24) are set on the same central axis, and one end of the fixing plate (27) is attached to the outside of the fixing block (28).

5. A cement fine powder screening device according to claim 1, characterized in that, The connection between the machine box (21) and the screen box (11) is through each other, and the guide plate (29) is tilted at an angle of forty-five degrees.

6. A cement fine powder screening device according to claim 1, characterized in that, It also includes retrieval structures; The retrieval structure includes a collection groove (31), a toothed plate (32), a frame (33), and a connecting groove (34); The collection trough (31) is located at both ends of the sieve box (11), the toothed plate (32) is fixedly connected to both sides of the inner wall of the collection trough (31), the frame (33) is slidably connected to the inside of the collection trough (31), and the connecting groove (34) is located on both sides of the outer wall of the frame (33).

7. A cement fine powder screening device according to claim 6, characterized in that, The retrieval structure also includes a rotating gear (35), a threaded rod (36), a screw barrel (37), a placement plate (38), and a collection frame (39). The rotating gear (35) is rotatably connected to the inside of the frame (33), the threaded rod (36) is fixedly connected to the top of the rotating gear (35), the screw barrel (37) is threadedly connected to the top of the threaded rod (36), the placement plate (38) is fixedly connected to the top of the screw barrel (37), and the collection frame (39) is placed on the top of the placement plate (38).

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