Cement screening device

Abstract

The utility model discloses a cement screening device which comprises a device body, a screening frame, a screen mesh, a material box and a rack, the screening frame is arranged in the device body, the screen mesh is fixed in the screening frame, supporting seats are fixed on the two inner walls of the device body below the screening frame, and the material box is fixed on the supporting seats. A driving groove is formed in each supporting seat, a rotating rod is installed between the supporting seats, the two ends of the rotating rod extend into the driving groove and are provided with gears, the racks are installed at the positions, at the gears, of the bottom end of the screening frame, and rolling wheel grooves are formed in the two sides of the top ends of the supporting seats; and guide rolling wheels are installed at the positions, at the rolling wheel grooves, of the bottom end of the screening frame, the material box is installed at the top end of the device body, and a discharging pipe is installed on one side of the bottom end of the material box. According to the dynamic screening device, the dynamic screening function is achieved, the situation that meshes are blocked is reduced, cement discharging is smooth, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement processing, in particular to a cement screening device. Background Art

[0002] Cement is a powdery, hydraulic inorganic gelling material, which becomes a slurry when mixed with water. It can harden in the air or in water, and can firmly bond sand, stone and other materials together. Cement plays a very important role in road construction and is mainly used to make cement pavements, cement bases, cement floors, cement channels, etc.

[0003] During the production process of cement, some caking and poor particle condition will occur, which will cause certain difficulties in subsequent processing and use. Therefore, a screening device is needed to screen the cement. Screening can separate the coarse particles in the cement, thereby ensuring the quality of the cement. However, when screening, construction workers generally pour the cement directly onto the screen for screening. A large amount of cement covers the screen, which can easily block the mesh of the screen, causing poor material feeding and affecting the screening efficiency. Therefore, improvement is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to provide a cement screening device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cement screening device, comprising a device body, a screening frame, a screen, a material box and a rack, the screening frame is arranged inside the device body, the screen is fixed inside the screening frame, support seats are fixed on both inner walls of the device body below the screening frame, and a driving groove is arranged inside the support seat, a rotating rod is installed between the support seats, and both ends of the rotating rod extend to the inside of the driving groove and are installed with a gear, a second rotating driving member is installed on the outer wall of one side of the support seat, and the output end of the second rotating driving member is fixedly connected to one end of the rotating rod, the rack is installed at the bottom end of the screening frame at the gear position, the rack is tightly meshed with the gear, roller grooves are arranged on both sides of the top of the support seat, and guide rollers are installed at the bottom end of the screening frame at the roller groove position, and the guide rollers cooperate with the roller grooves, the material box is installed at the top end of the device body, and a feeding pipe is installed on one side of the bottom end of the material box, and the bottom end of the feeding pipe extends to the top of the screen.

[0006] Preferably, a material collecting bucket is provided on one side of the device body to facilitate the collection of large-particle cement.

[0007] Preferably, a material collecting trough is provided at the bottom of the device body below the screening frame to facilitate the collection of the fine cement after screening.

[0008] Preferably, both ends of the screening frame pass through the opening groove on the outer wall of the device body and extend to the outside of the device body.

[0009] Preferably, the screen has an inclined structure with the left side higher and the right side lower, so as to facilitate the discharge of large particles of cement on the surface of the screen into the collecting bucket.

[0010] Preferably, a guiding slope is provided at the bottom of the material box to facilitate the discharge of cement inside the material box through the discharge pipe.

[0011] Preferably, a dredging rod is installed on one side of the interior of the material box, and the bottom end of the dredging rod extends to the interior of the discharge pipe and is installed with a material conveying rotor, so as to facilitate the continuous discharge of cement inside the material box and realize the continuous discharge function.

[0012] Preferably, a first rotating driving member is installed at the top of the material box at the position of the dredging rod, and the output end of the first rotating driving member is fixedly connected to the dredging rod for driving the dredging rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] Pour cement into the feed box, and the cement falls on the screen inside the screening frame through the discharge pipe. Under the screening action of the screen, fine cement passes through the mesh of the screen and falls into the receiving trough, while large particles of cement remain on the surface of the screen, thereby realizing the screening function of cement. During the screening process, the second rotating drive member drives the rotating rod to make it rotate continuously in the forward and reverse directions, and the rotating rod drives the gear to rotate synchronously. The gear drives the screening frame through the rack to make it reciprocate. At the same time, the guide roller at the bottom of the screening frame rolls along the roller groove to guide the movement of the screening frame. The reciprocating motion of the screening frame generates thrust and vibration force on the cement, so that the cement is in a moving state on the surface of the screen, thereby reducing the blockage of the screen mesh and making the cement discharge smooth, thereby improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional enlarged structural schematic diagram of the support seat of the utility model;

[0017] Figure 3 It is a schematic diagram of an enlarged side cross-sectional structure of the support seat of the utility model;

[0018] Figure 4 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 5 It is a schematic diagram of the enlarged structure of the screen in a top view of the utility model.

[0020] In the figure: 1. device body; 101. open slot; 2. screening frame; 3. screen; 4. material box; 401. guide slope; 5. first rotating drive member; 6. support seat; 7. material collecting barrel; 8. material collecting slot; 9. driving slot; 10. rotating rod; 11. gear; 12. rack; 13. roller slot; 14. guide roller; 15. second rotating drive member; 16. material discharge pipe; 17. dredging rod; 18. material conveying rotor. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides an embodiment: a cement screening device, comprising a device body 1, a screening frame 2, a screen 3, a material box 4 and a rack 12, the screening frame 2 is arranged inside the device body 1, and the screen 3 is fixed inside the screening frame 2;

[0024] Specifically, cement is poured into the feed box 4, and the cement falls into the interior of the device body 1 through the feed pipe 16 under the guidance of the guide slope 401, and the cement falls on the screen 3 inside the screening frame 2. At this time, under the screening effect of the screen 3, fine cement passes through the mesh of the screen 3 and falls into the receiving trough 8, and large particles of cement remain on the surface of the screen 3, thereby realizing the screening function of cement and separating the coarse particles in the cement, thereby ensuring the quality of the cement;

[0025] Support seats 6 are fixed on both inner walls of the device body 1 below the screening frame 2, and a driving groove 9 is arranged inside the support seats 6, a rotating rod 10 is installed between the support seats 6, and both ends of the rotating rod 10 extend to the inside of the driving groove 9 and are installed with a gear 11, a second rotating driving member 15 is installed on the outer wall of one side of the support seat 6, and the output end of the second rotating driving member 15 is fixedly connected to one end of the rotating rod 10, a rack 12 is installed at the bottom end of the screening frame 2 at the position of the gear 11, and the rack 12 is tightly meshed with the gear 11;

[0026] Both sides of the top of the support seat 6 are provided with roller grooves 13, and the bottom of the screening frame 2 at the position of the roller grooves 13 is provided with guide rollers 14, and the guide rollers 14 cooperate with the roller grooves 13;

[0027] Specifically, during the screening process, the second rotary drive member 15 drives the rotating rod 10 to rotate forward and reverse continuously, and the rotating rod 10 drives the gear 11 to rotate synchronously, and the gear 11 drives the screening frame 2 to reciprocate through the rack 12. At the same time, the guide roller 14 at the bottom end of the screening frame 2 rolls along the roller groove 13 to guide the movement of the screening frame 2. The reciprocating motion of the screening frame 2 generates thrust and vibration force on the cement, so that the cement is in a moving state on the surface of the screen 3, thereby reducing the blockage of the mesh of the screen 3, making the cement unobstructed, and thus improving the screening efficiency;

[0028] The material box 4 is installed at the top of the device body 1, and a feeding pipe 16 is installed on one side of the bottom end of the material box 4, and the bottom end of the feeding pipe 16 extends to the top of the screen 3;

[0029] A material receiving barrel 7 is provided on one side of the device body 1;

[0030] Specifically, under the tilting effect of the screen 3, large cement particles on its surface are discharged into the receiving bucket 7;

[0031] A material receiving trough 8 is provided at the bottom of the device body 1 below the screening frame 2;

[0032] Both ends of the screening frame 2 pass through the opening slot 101 on the outer wall of the device body 1 and extend to the outside of the device body 1;

[0033] The screen 3 is in an inclined structure with the left side higher and the right side lower;

[0034] A guide slope 401 is provided at the bottom of the material box 4;

[0035] A dredging rod 17 is installed on one side of the inside of the material box 4, and the bottom end of the dredging rod 17 extends to the inside of the feeding pipe 16 and is installed with a feeding rotor 18;

[0036] A first rotary drive member 5 is installed at the top of the material box 4 at the position of the dredging rod 17, and the output end of the first rotary drive member 5 is fixedly connected to the dredging rod 17;

[0037] Specifically, the first rotary drive member 5 drives the dredging rod 17 to rotate, and the dredging rod 17 drives the feeding vane 18 to rotate, and the feeding vane 18 dredges the discharge pipe 16, so that the cement discharge is continuous, and the continuous discharge function can be realized to prevent the concentrated discharge of cement from causing coverage and congestion.

[0038] When the embodiment of the present application is in use: first, pour cement into the feed box 4, and the cement falls into the interior of the device body 1 through the discharge pipe 16 under the guiding action of the guide slope 401. During this process, the first rotary drive member 5 drives the dredging rod 17 to rotate, and the dredging rod 17 drives the feeding vane 18 to rotate. The feeding vane 18 dredges the discharge pipe 16, so that the cement discharge is continuous, and the continuous discharge function can be realized to prevent the concentrated discharge of cement from causing coverage and congestion. Then, the cement falls on the screen 3 inside the screening frame 2. At this time, under the screening action of the screen 3, the fine cement passes through the mesh of the screen 3 and falls into the receiving trough 8, and the large particles of cement remain on the surface of the screen 3, realizing the screening function of the cement and separating the coarse and large particles in the cement. The particles are separated, thereby ensuring the quality of cement. During the screening process, the second rotating drive member 15 drives the rotating rod 10 to rotate continuously in the forward and reverse directions. The rotating rod 10 drives the gear 11 to rotate synchronously. The gear 11 drives the screening frame 2 to reciprocate through the rack 12. At the same time, the guide roller 14 at the bottom end of the screening frame 2 rolls along the roller groove 13 to guide the movement of the screening frame 2. The reciprocating motion of the screening frame 2 generates thrust and vibration force on the cement, so that the cement is in a moving state on the surface of the screen 3, thereby reducing the blockage of the mesh of the screen 3, making the cement feeding smooth, thereby improving the screening efficiency. Finally, under the inclination of the screen 3, the large particles of cement on its surface are discharged into the receiving bucket 7.

[0039] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A cement screening device, characterized in that: The invention comprises a device body (1), a screening frame (2), a screen (3), a material box (4) and a rack (12), wherein the screening frame (2) is arranged inside the device body (1), the screen (3) is fixed inside the screening frame (2), support seats (6) are fixed on both inner walls of the device body (1) below the screening frame (2), and a driving groove (9) is arranged inside the support seats (6), a rotating rod (10) is installed between the support seats (6), and both ends of the rotating rod (10) extend to the inside of the driving groove (9) and are installed with a gear (11), a second rotating driving member (15) is installed on the outer wall of one side of the support seat (6), and the first rotating driving member (15) is installed on the outer wall of one side of the support seat (6), and the second rotating driving member (15) is installed on the outer wall of the second rotating driving member (15). The output ends of the two rotating drive members (15) are fixedly connected to one end of the rotating rod (10); the rack (12) is mounted on the bottom end of the screening frame (2) at the position of the gear (11); the rack (12) and the gear (11) are tightly meshed; roller grooves (13) are provided on both sides of the top end of the support seat (6); and guide rollers (14) are installed on the bottom end of the screening frame (2) at the position of the roller grooves (13); the guide rollers (14) and the roller grooves (13) cooperate with each other; the material box (4) is mounted on the top end of the device body (1); and a feed pipe (16) is installed on one side of the bottom end of the material box (4); and the bottom end of the feed pipe (16) extends to the top of the screen (3).

2. A cement screening device according to claim 1, characterized in that: A material receiving barrel (7) is provided on one side of the device body (1).

3. A cement screening device according to claim 1, characterized in that: A material receiving trough (8) is provided at the bottom of the device body (1) below the screening frame (2).

4. A cement screening device according to claim 1, characterized in that: Both ends of the screening frame (2) penetrate through the opening groove (101) on the outer wall of the device body (1) and extend to the outside of the device body (1).

5. A cement screening device according to claim 1, characterized in that: The screen (3) has an inclined structure with the left side higher and the right side lower.

6. A cement screening device according to claim 1, characterized in that: The bottom of the material box (4) is provided with a guiding inclined surface (401).

7. A cement screening device according to claim 1, characterized in that: A dredging rod (17) is installed on one side of the interior of the material box (4), and the bottom end of the dredging rod (17) extends to the interior of the material discharge pipe (16) and is installed with a material conveying rotor (18).

8. A cement screening device according to claim 7, characterized in that: A first rotating driving member (5) is installed at the top of the material box (4) at the position of the dredging rod (17), and the output end of the first rotating driving member (5) is fixedly connected to the dredging rod (17).

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