Cement silo bottom discharge device

Abstract

The utility model relates to cement storehouse discharge technology field, concretely is a kind of cement storehouse bottom discharge device, install in cement storehouse bottom, including feed tank, feed pipe and screening subassembly, feed tank top connects feed pipe, be equipped with multiple discharge ports on feed tank;Discharge port is corresponding with arc plate, splitter and discharge plate respectively;Screening subassembly is connected on feed tank, and screening subassembly includes deflector, screening piece, splitter and detection piece.The utility model, cement feed tank is screened by the mesh of screening piece, larger broken block will be discharged through discharge plate, and cement through screening piece will fall on splitter, and splitter will separate cement again, third filter screen plate and fixed plate will distinguish broken block and powder, and broken block is guided out feed tank through arc plate, and detection piece controls the size of mesh by the temperature and humidity in feed tank to control first filter screen plate and second filter screen plate to change mesh, to prevent soft cement block from plugging mesh.

Description

Technical Field

[0001] This utility model relates to the field of cement silo discharge technology, specifically to a cement silo bottom discharge device. Background Technology

[0002] In cement production, the produced cement is often stored directly in cement silos in a scattered manner, and then discharged through the discharge device of the cement silo when needed.

[0003] Chinese Patent No. CN 22475582U discloses a novel cement silo discharge device, comprising: a cement silo, a box body located on the lower side of the cement silo, a pneumatic valve fixedly connected between the box body and the cement silo, a discharge pipe fixedly connected to the lower side of the box body, a discharge chute fixedly connected to the lower end of the discharge pipe, an air-filled inclined chute fixedly connected to the lower end of the discharge chute, and a discharge port located at the lower side of the other end of the air-filled inclined chute; a driving rotor and a driven rotor rotatably connected inside the box body, both of which are fixedly connected to crushing plates, and the driving rotor and driven rotor are arranged in parallel; gears are fixedly connected to both the driving rotor and driven rotor located outside the box body, and the gears on both sides are meshed; a first motor is fixedly connected to the right side of the box body, and the output end of the first motor is fixedly connected to the driving rotor. This structure improves the efficiency of material crushing and the quality of cement.

[0004] However, in the above technical solution, the material is crushed by setting up a relatively rotating active rotor and a driven rotor and setting crushing plates on the active rotor and the driven rotor. This makes the cement crushing efficiency high and the discharge smooth, improving the efficiency of crushed materials and the quality of cement. However, when the device is in use, the crushing structure is located between the cement silo and the discharge port. All cement needs to come into contact with the crushing structure to be discharged. Normal contact between cement and the crushing structure may cause the cement to be crushed again, affecting the quality of cement. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a cement silo bottom discharge device.

[0006] The technical solution of this utility model is as follows: A cement silo bottom discharge device is installed at the bottom of the cement silo, including a feeding box with a feeding pipe connected to its top and multiple discharge ports on the feeding box; a screening component connected to the feeding box, which includes a guide plate, a screening element, a diverting plate, and a detection element. The inclined guide plate is connected to the feeding box, the inclined screening element is connected to the feeding box, the diverting plate is located below the screening element and is connected to the feeding box, and the discharge plate is located below the guide plate and connected to the feeding box; the screening element consists of a first filter screen, a second filter screen, and a telescopic device. The first filter screen and the second filter screen are slidably connected, and one end of the parallel telescopic device is connected to the first filter screen; the detection element consists of a detection device and an annular nozzle. The annular nozzle is located outside the detection device and sprays high-speed gas to form an air curtain; when the screening component is in use, the detection device detects changes in humidity and controls the telescopic device to start. The telescopic end of the telescopic device pushes the first filter screen to move, and the meshes on the first and second filter screens are staggered to change the mesh size.

[0007] Preferably, the detection component also includes a mounting bracket connected to the feed box, a mounting plate connected to the mounting bracket, an annular nozzle and a humidity sensor, and a microprocessor connected to the mounting plate.

[0008] Preferably, the screening component further includes a connecting frame connected to the telescopic end of the telescopic device, one end of which passes through the feed box and is connected to the second filter screen; and a guide frame connected to the feed box, which is slidably connected to the first filter screen.

[0009] Preferably, the guide frame has a dovetail groove, and the first filter screen plate is connected to a dovetail block that is slidably connected to the dovetail groove.

[0010] Preferably, the connecting frame is connected to parallel protective plates, which are located on both sides of the side wall of the box, and a rubber layer is connected to the opposite side of the protective plates.

[0011] Preferably, the diverter plate consists of a U-shaped frame, a third filter plate, and a fixing plate. The two sides of the U-shaped frame are connected to the feed box, and the third filter plate and the fixing plate are arranged parallel to each other, both of which are connected to the U-shaped frame.

[0012] Preferably, an arc-shaped plate is connected to the U-shaped frame, and the arc-shaped plate is set perpendicular to the U-shaped frame.

[0013] Preferably, the first filter plate, the second filter plate, and the third filter plate are all coated with a graphene-modified coating.

[0014] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0015] In this invention, after cement enters the feed box through the feed pipe, it is screened by the mesh of the screening element. Larger pieces are discharged through the discharge plate, while cement that has passed through the screening element falls onto the diversion plate. The diversion plate separates the cement again. The third filter screen and the fixed plate separate the pieces and powder, and the arc plate leads the pieces out of the feed box. The detection element detects the temperature and humidity in the feed box to control the sliding of the first filter screen and the second filter screen to change the size of the mesh, so as to prevent soft cement lumps from clogging the mesh. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 for Figure 1 A partial structural diagram;

[0018] Figure 3 This is a schematic diagram of the screening component structure;

[0019] Figure 4 This is a schematic diagram of the component structure for filtering.

[0020] Reference numerals: 1. Feed box; 2. Feed pipe; 3. Guide plate; 4. Screening component; 5. Diverter plate; 6. Detector; 7. First filter screen; 8. Second filter screen; 9. Telescopic device; 10. Detection device; 11. Annular nozzle; 12. Mounting bracket; 13. Mounting plate; 14. Connecting bracket; 15. Guide frame; 16. Dovetail groove; 17. Dovetail block; 18. Protective plate; 19. U-shaped frame; 20. Third filter screen; 21. Fixing plate; 22. Arc plate. Detailed Implementation

[0021] Example 1

[0022] like Figures 1-4As shown, this utility model proposes a cement silo bottom discharge device, installed at the bottom of the cement silo, including a feeding box 1, a feeding pipe 2, and a screening assembly. The top of the feeding box 1 is connected to the feeding pipe 2, and the feeding box 1 has multiple discharge ports. The discharge ports correspond to the arc plate 22, the diversion plate 5, and the discharge plate, respectively. The screening assembly is connected to the feeding box 1 and includes a guide plate 3, a screening element 4, a diversion plate 5, and a detection element 6. The inclined guide plate 3 is connected to the feeding box 1, and the inclined screening element 4 is also connected to the feeding box 1. The diversion plate 5 is located below the screening element 4 and is connected to the feeding box 1. The discharge plate, connected to the feeding box 1, is located below the guide plate 3. The screening element 4 consists of a first filter screen. 7. The first filter plate 7 and the second filter plate 8 are slidably connected. One end of the parallel telescopic device 9 is connected to the first filter plate 7. The telescopic device 9 is selected, but is not limited to, a fully enclosed electric push rod. The detection element 6 is composed of a detection device 10 and an annular nozzle 11. The annular nozzle 11 is located outside the detection device 10 and sprays high-speed gas to form an air curtain. The detection device 10 is selected as a humidity sensor. When the screening component is in use, the detection device 10 detects the change in humidity and controls the telescopic device 9 to start. The telescopic end of the telescopic device 9 pushes the first filter plate 7 to move. The mesh holes on the first filter plate 7 and the second filter plate 8 are staggered to change the size of the mesh holes.

[0023] Example 2

[0024] like Figures 2-4 As shown, the present invention proposes a cement silo bottom discharge device. Compared with Embodiment 1, this embodiment describes the detailed structure of the screening component. The detection component 6 also includes a mounting frame 12 and a mounting plate 13. The mounting frame 12 is connected to the feed box 1, and the mounting plate 13 is connected to the mounting frame 12. The mounting plate 13 is connected to the annular nozzle 11 and the detection device 10. A microprocessor is connected to the mounting plate 13. The annular nozzle 11 is connected to an external air supply device to blow out high-speed gas to form an air curtain.

[0025] The screening assembly also includes a connecting frame 14 and a guide frame 15. The connecting frame 14 is connected to the telescopic end of the telescopic device 9. One end of the connecting frame 14 passes through the feed box 1 and is connected to the second filter screen 8. The guide frame 15 is connected to the feed box 1 and is slidably connected to the first filter screen 7.

[0026] In an optional embodiment, a dovetail groove 16 is provided on the guide frame 15, and a dovetail block 17 is connected to the first filter screen plate 7 and slidably connected to the dovetail groove 16; the opening of the dovetail block 17 and the dovetail groove 16 is to guide the first filter screen plate 7 to travel along a predetermined route.

[0027] In an optional embodiment, a parallel protective plate 18 is connected to the connecting frame 14. The protective plate 18 is disposed on both sides of the side wall of the feed box 1, and a rubber layer is connected to the opposite side of the protective plate 18. The protective plate 18 can block the sliding groove opened on the feed box 1, thereby reducing the entry and escape of dust.

[0028] In an optional embodiment, the diverter plate 5 consists of a U-shaped frame 19, a third filter plate 20, and a fixing plate 21. The U-shaped frame 19 is connected to the housing on both sides, and the third filter plate 20 and the fixing plate 21 are arranged parallel to each other vertically and are both connected to the U-shaped frame 19.

[0029] In an optional embodiment, an arc plate 22 is connected to the U-shaped frame 19, and the arc plate 22 is set perpendicular to the U-shaped frame 19; the arc plate 22 guides the fragments that fall on the U-shaped frame 19 and are intercepted by the third filter plate 20, so that they are discharged from the opening on one side wall of the feed box 1 for later centralized collection and processing.

[0030] In an optional embodiment, the first filter plate 7, the second filter plate 8, and the third filter plate 20 are all coated with a graphene-modified coating; the graphene-modified coating has the ability to significantly reduce powder adhesion and prevent dust adsorption caused by static electricity.

[0031] In summary, when this utility model is used, after the cement silo valve is opened, cement enters the feed box 1 through the feed pipe 2. Powdered cement and lumpy cement come into contact with the guide plate 3, and are guided by its angle to slide onto the screening element 4. The screening element 4 allows powdered cement to pass through its mesh, while lumpy cement is blocked and slides under gravity to contact the discharge plate before sliding out of the feed box 1. The powdered cement that has passed through the mesh continues to fall under gravity and comes into contact with the diversion plate 5. The diversion plate 5 is filtered again by the third filter screen 20, causing the lumpy cement to be intercepted and pass through the diversion plate 5 itself due to its tilt angle and arc. The powdered cement is guided out by the shaping plate 22 and comes into contact with the fixing plate 21 and is discharged into the feed box 1 for centralized collection. At the same time, the detection device 10 monitors the humidity in the feed box 1 in real time. When the detected humidity reaches the set threshold, the external air supply equipment provides a high-speed ball that is sprayed out from the annular nozzle 11. If the position detection device 10 is not contaminated by dust, it sends a signal to the microcontroller to control the extension end of the telescopic device 9 to extend. The telescopic device 9 drives the connecting frame 14 and the first filter screen 7 to move so that they intersect with the mesh on the second filter screen 8, increasing the aperture to meet different needs.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A cement silo bottom discharge device, installed at the bottom of the cement silo, characterized in that, include The feed box (1) has a feed pipe (2) connected to its top, and the feed box (1) has multiple discharge ports. The screening component is connected to the feed box (1). The screening component includes a guide plate (3), a screening component (4), a diverting plate (5) and a detection component (6). The inclined guide plate (3) is connected to the feed box (1), the inclined screening component (4) is connected to the feed box (1), the diverting plate (5) is set below the screening component (4), the inclined diverting plate (5) is connected to the feed box (1), and the discharge plate connected to the feed box (1) is set below the guide plate (3). The screening component (4) consists of a first filter plate (7), a second filter plate (8) and a telescopic device (9). The first filter plate (7) and the second filter plate (8) are slidably connected, and one end of the telescopic device (9) is connected to the first filter plate (7). The detection component (6) consists of a detection device (10) and an annular nozzle (11). The annular nozzle (11) is located outside the detection device (10). The annular nozzle (11) sprays high-speed gas to form an air curtain. When the screening component is in use, the detection device (10) detects the change in humidity and controls the telescopic device (9) to start. The telescopic end of the telescopic device (9) pushes the first filter screen (7) to move. The mesh holes on the first filter screen (7) and the second filter screen (8) are interlaced to change the size of the mesh holes.

2. The cement silo bottom discharge device according to claim 1, characterized in that, The test piece (6) also includes Mounting bracket (12) is connected to feed box (1). Mounting plate (13) is connected to mounting bracket (12). Mounting plate (13) is connected to annular nozzle (11) and humidity sensor. Microprocessor is connected to mounting plate (13).

3. The cement silo bottom discharge device according to claim 1, characterized in that, The filtering components also include A connecting frame (14) is connected to the telescopic end of the telescopic device (9). One end of the connecting frame (14) passes through the feed box (1) and is connected to the second filter screen (8). The guide frame (15) is connected to the feed box (1) and is slidably connected to the first filter screen (7).

4. A cement silo bottom discharge device according to claim 3, characterized in that, The guide frame (15) has a dovetail groove (16), and the first filter screen plate (7) is connected to a dovetail block (17) that is slidably connected to the dovetail groove (16).

5. A cement silo bottom discharge device according to claim 3, characterized in that, The connecting frame (14) is connected to a parallel protective plate (18), which is set on both sides of the side wall of the box. The protective plates (18) are connected to a rubber layer on the opposite side.

6. A cement silo bottom discharge device according to claim 1, characterized in that, The diversion plate (5) consists of a U-shaped frame (19), a third filter plate (20) and a fixing plate (21). The U-shaped frame (19) is connected to the feed box (1) on both sides. The third filter plate (20) and the fixing plate (21) are arranged parallel to each other vertically and are both connected to the U-shaped frame (19).

7. A cement silo bottom discharge device according to claim 6, characterized in that, An arc-shaped plate (22) is connected to the U-shaped frame (19), and the arc-shaped plate (22) is set perpendicular to the U-shaped frame (19).

8. A cement silo bottom discharge device according to claim 6, characterized in that, The first filter plate (7), the second filter plate (8), and the third filter plate (20) are all coated with a graphene-modified coating.

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