Guniting material discharging device of underground mixing plant

Abstract

The utility model relates to the technical field of slurry discharge, and discloses a slurry discharge device for an underground mixing plant, which comprises a hopper, a screen is obliquely arranged in the hopper, a receiving barrel is rotatably arranged at the bottom of the screen, a receiving port is arranged on one side of the receiving barrel close to the screen, and a discharge port is arranged on the other side of the receiving barrel. A material discharging opening is formed in the side, close to the material receiving barrel, of the hopper, a sealing plate is arranged at the material discharging opening, the material receiving barrel is fixedly connected with the sealing plate, the sealing plate blocks the material discharging opening in the initial state, the material receiving barrel is rotated to drive the sealing plate to rotate in the working process, and the material receiving barrel is driven by the sealing plate to rotate. The material receiving opening rotates from the interior of the hopper to the outer side of the hopper, and discharging is completed; according to the slurry spraying device, slurry can be filtered, large stone aggregate or impurities in the slurry can be screened and removed, and normal work of the slurry spraying device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of slurry discharge technology, and in particular to a slurry discharge device for underground mixing stations. Background Technology

[0002] Currently, the shotcrete material used in underground coal mine shotcrete support projects is generally mixed at the surface within a certain period, then transported underground by mine hoist, and distributed to various construction sites via the underground transportation system. This extensive transportation system between the surface and underground cannot guarantee the timely arrival of the shotcrete material at the construction site (or the material may have already clumped and hardened by the time it arrives). This directly affects the quality and progress of the construction project. Furthermore, workers must deal with the clumps during unloading, increasing their workload and extending their working hours. Therefore, many large metal mines have constructed shotcrete mixing plants deep underground, using shotcrete transport vehicles to deliver the material to the working face. Workers at the working face then use shotcrete trolleys to perform full-section shotcrete support operations.

[0003] However, due to the harsh underground working environment, the shotcrete supplied by the shotcrete mixing plant often contains large aggregates or debris, which need to be filtered out during slurry discharge. Existing shotcrete mixing plant discharge mechanisms lack filtration systems, easily leading to clogging and even damage to the shotcrete equipment. Therefore, there is an urgent need for a shotcrete discharge device for underground mixing plants that can filter the slurry to ensure the normal operation of the shotcrete equipment. Utility Model Content

[0004] The purpose of this invention is to provide a slurry discharge device for underground mixing plants, which can filter the slurry and remove large stones or impurities, ensuring the normal operation of the slurry equipment.

[0005] The present invention adopts the following technical solution:

[0006] A grout discharge device for an underground mixing plant includes a hopper, a screen inclinedly arranged inside the hopper, a receiving cylinder rotatably arranged at the bottom of the screen, a receiving port on the side of the receiving cylinder near the screen, and a discharge port on the side of the hopper near the receiving cylinder. A sealing plate is provided at the discharge port, and the receiving cylinder is fixedly connected to the sealing plate. In the initial state, the sealing plate blocks the discharge port. During operation, rotating the receiving cylinder drives the sealing plate to rotate, and the receiving port rotates from inside the hopper to the outside of the hopper, completing the discharge.

[0007] Preferably, a motor with a brake mechanism is provided on the outside of the hopper, and the motor is connected to the receiving cylinder.

[0008] Preferably, the receiving cylinder is a mesh cylinder structure, and its mesh size is the same as that of the screen.

[0009] Preferably, the receiving cylinder is located at the middle position of the sealing plate.

[0010] Preferably, an L-shaped sealing groove is provided on the outer side of the upper end and the inner side of the lower end of the discharge port, and a groove complementary to the sealing groove is provided on the inner and outer sides of the upper and lower ends of the sealing plate.

[0011] Preferably, a guide plate is provided extending outward from the bottom of the receiving port, and support plates are provided on both sides of the screen for placing the guide plate.

[0012] Preferably, the top of the guide plate does not protrude beyond the top of the screen after it is placed on the support plate.

[0013] Preferably, the guide plate has a mesh structure.

[0014] Preferably, the receiving cylinder is cylindrical in shape.

[0015] Preferably, a support plate is provided on the inner wall of the hopper, and the screen is bolted to the support plate.

[0016] Compared with existing technologies, the advantages of this invention are as follows: This invention uses a screen inside the hopper to filter large stones or impurities in the slurry, preventing clogging of the spraying equipment. The inclined design of the screen increases the filtration area and helps the screened large stones or impurities fall to one side of the hopper for convenient centralized discharge. The rotating receiving cylinder at the bottom of the screen collects the screened large stones or impurities, allowing for subsequent centralized discharge via the rotation of the receiving cylinder, thus improving operational convenience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0018] Figure 2 This is a partial cross-sectional view of the hopper in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the receiving cylinder according to an embodiment of this application;

[0020] Figure 4 This application presents a schematic diagram of the structure of the sieve in an embodiment. Detailed Implementation

[0021] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments:

[0022] like Figures 1 to 4 As shown, the present invention discloses a grout discharge device for an underground mixing plant, comprising a hopper 1. The hopper 1 has a structure with a large opening at the top and a small opening at the bottom. A screen 2 is inclined from top to bottom inside the hopper 1. A receiving cylinder 3 is rotatably mounted at the bottom of the screen 2. The receiving cylinder 3 has a cylindrical structure. A receiving port 4 is provided on the side of the receiving cylinder 3 near the screen 2 for receiving large stone aggregates and debris screened out, providing temporary storage space for the large stone aggregates and debris. A discharge port is provided on the side of the hopper 1 near the receiving cylinder 3. A sealing plate 5 is provided, and the receiving cylinder 3 is fixedly connected to the sealing plate 5 on the side away from the screen 2. The receiving cylinder 3 is preferably positioned in the middle of the sealing plate 5 so that when the receiving cylinder 3 rotates, the rotation range of the sealing plate 5 relative to the discharge port is increased, facilitating the smooth discharge of large aggregates and debris from the receiving cylinder 3. Initially, the sealing plate 5 blocks the discharge port. During operation, rotating the receiving cylinder 3 drives the sealing plate 5 to rotate, and the receiving port 4 rotates from inside the hopper 1 to the outside of the hopper 1, thus discharging the large aggregates and debris collected in the receiving cylinder 3, completing the discharge operation. A motor 12 with a brake mechanism is installed on the outside of the hopper 1 to ensure that the motor 12 is locked in a static state. The output shaft of the motor 12 is connected to the rotating shaft at the end of the receiving cylinder 3 via a coupling. During operation, starting the motor 12 drives the receiving cylinder 3 to rotate, thus completing the discharge of the large aggregates and debris collected in the receiving cylinder 3.

[0023] In this embodiment, the receiving cylinder 3 is a mesh cylinder structure, wherein the mesh openings on the receiving cylinder 3 are the same as those on the screen. The mesh openings of the receiving cylinder 3 facilitate the normal filtration of the slurry falling along the screen 2 into the receiving cylinder 3, preventing some slurry from entering the receiving cylinder 3 during operation and subsequently being discharged along with large particles and impurities, thus avoiding waste of raw materials and increased cleaning frequency. Furthermore, L-shaped sealing grooves 6 are provided on the outer side of the upper end and the inner side of the lower end of the discharge port, and grooves 7, complementary to the sealing grooves 6, are provided on the inner and outer sides of the upper and lower ends of the sealing plate 5. This arrangement ensures the sealing effect of the sealing plate 5 on the discharge port, reducing the probability of slurry overflow.

[0024] Furthermore, a guide plate 8 extends outward from the bottom of the receiving port 4, and support plates 9 are provided on both sides of the screen 2 for placing the guide plate 8. A receiving sleeve 10 is provided on the support plate 9, and the rotating shaft on the receiving cylinder 3 is installed in the receiving sleeve 10 via bearings. The guide plate 8 helps the screened large aggregates and debris to smoothly enter the receiving cylinder 3, preventing them from getting stuck in the gap between the receiving cylinder 3 and the screen 2. In addition, after the guide plate 8 is placed on the support plate 9, its top does not protrude from the top of the screen 2; preferably, the top of the guide plate 8 is flush with the top of the screen 2 to allow the slurry and screened large aggregates to flow smoothly. The guide plate 8 is preferably designed with a mesh structure to increase the screening area of ​​the screen 2, thereby improving the screening efficiency of the slurry and reducing the amount of slurry entering the receiving cylinder 3. In this embodiment, a support plate 11 is provided on the inner wall of the hopper 1, and the screen 2 is bolted to the support plate 11 on both sides; countersunk holes are provided on both sides of the support plate 9 to prevent the bolts from protruding from the top of the support plate 9 when the support plate 11 is connected to the support plate 9, thus affecting the fit between the guide plate 8 and the support plate 9.

[0025] In use, the mixing equipment discharges the slurry into the hopper 1. The outlet at the bottom of the hopper 1 can be connected to the spraying equipment. After being filtered by the screen 2, the slurry falls into the hopper 1 below the screen 2 and is sprayed out by the spraying equipment during operation. The filtered large stone aggregates and debris will enter the receiving cylinder 3 for temporary storage. Finally, the motor 12 is started to drive the receiving cylinder 3 to rotate and discharge the large stone aggregates and debris.

Claims

1. A slurry discharge device for an underground mixing plant, characterized in that: The device includes a hopper, inside which a screen is inclinedly arranged. A receiving cylinder is rotatably arranged at the bottom of the screen. A receiving port is provided on the side of the receiving cylinder near the screen. A discharge port is provided on the side of the hopper near the receiving cylinder. A sealing plate is provided at the discharge port. The receiving cylinder is fixedly connected to the sealing plate. In the initial state, the sealing plate blocks the discharge port. During operation, rotating the receiving cylinder causes the sealing plate to rotate, and the receiving port rotates from inside the hopper to the outside of the hopper, completing the discharge.

2. The underground mixing plant slurry discharge device according to claim 1, characterized in that: The hopper is equipped with a motor with a brake mechanism on its outer side, and the motor is connected to the receiving cylinder.

3. The underground mixing plant slurry discharge device according to claim 2, characterized in that: The receiving cylinder is a mesh cylinder structure, and its mesh size is the same as that of the screen.

4. The underground mixing plant slurry discharge device according to claim 1, characterized in that: The receiving cylinder is located at the middle position of the sealing plate.

5. The underground mixing plant slurry discharge device according to claim 4, characterized in that: The upper outer side and lower inner side of the discharge port are provided with L-shaped sealing grooves, and the upper and lower inner and outer sides of the sealing plate are provided with grooves that complement the sealing grooves.

6. The underground mixing plant slurry discharge device according to claim 1, characterized in that: A guide plate is provided extending outward from the bottom of the receiving port, and support plates are provided on both sides of the screen for placing the guide plate.

7. The underground mixing plant slurry discharge device according to claim 6, characterized in that: After the guide plate is placed on the support plate, its top does not protrude beyond the top of the screen.

8. The underground mixing plant slurry discharge device according to claim 7, characterized in that: The baffle plate has a mesh structure.

9. The underground mixing plant slurry discharge device according to claim 1, characterized in that: The receiving cylinder is cylindrical in shape.

10. The underground mixing plant slurry discharge device according to claim 1, characterized in that: The inner wall of the hopper is provided with a support plate, and the screen is bolted to the support plate.

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