Safety protection device for chemical engineering

Abstract

The utility model discloses a safety protection device for chemical engineering, which comprises a feed hopper, a safety filter screen is mounted in the feed hopper, a protection cover is mounted at the top end of the feed hopper, the top end of the protection cover is communicated with a protection box, an exhaust fan is mounted at the top end of the protection cover, and the input end of the exhaust fan is communicated with the inside of the protection box through an exhaust pipe. A filter screen plate is installed in the protection box, a feeding pipe is communicated to the protection cover, a feeding hopper is connected to the top end of the feeding pipe, a sealing cover is installed at the top end of the feeding hopper in a screwed mode, and a cleaning mechanism is installed on the protection box. According to the device, powder materials flying around the feeding hopper are sucked into the feeding hopper and the protection box, the powder materials are intercepted through the filter screen plate, the powder materials are prevented from flying into the surrounding air, potential harm to the health of workers is avoided, and the use safety and practicability of the device are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of chemical engineering technology, and more specifically, it relates to a safety protection device for chemical engineering. Background Technology

[0002] In the chemical industry, feeding is a crucial step, involving the addition of various chemical raw materials and reactants. However, this process is often accompanied by safety hazards, such as material leakage, airborne particles, improper addition of reactants, and falls. These not only affect production efficiency but may also threaten the health of operators. To address these issues, chemical engineering feeding safety protection devices have emerged.

[0003] A search revealed that Chinese utility model patent application number CN202323019157.2 discloses a safety protection device for feeding materials in chemical engineering, including a feed hopper, a safety filter, and a sealing cover. An installation block is welded inside the feed hopper. The bottom of the safety filter is fixedly connected to four circumferentially distributed positioning blocks by screws. A slider and two symmetrically arranged limiting blocks are slidably assembled inside the positioning blocks. One end of the limiting blocks is inclined. A connecting block is fixedly connected to one side of each of the two limiting blocks by screws. A sliding rod is fixedly nested on each of the two connecting blocks.

[0004] When chemical materials are added into the feed hopper, the chemical materials contain powdery materials. These powdery chemical materials are easily scattered into the surrounding air, affecting the surrounding environment and posing a potential hazard to the health of workers, thus reducing the safety and practicality of its use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a safety protection device for chemical engineering, which solves the technical problem mentioned in the background art that powdered chemical materials are easily scattered into the surrounding air, affecting the surrounding environment and posing potential hazards to the health of workers, thus reducing the safety and practicality of its use.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a safety protection device for chemical engineering, comprising a feeding hopper, a safety filter screen installed inside the feeding hopper, a protective cover installed at the top of the feeding hopper, a protective box connected to the top of the protective cover, an exhaust fan installed at the top of the protective cover, the input end of the exhaust fan connected to the interior of the protective box via an exhaust pipe, a filter screen plate installed inside the protective box, a feeding pipe connected to the protective cover, a feeding hopper connected to the top of the feeding pipe, a sealing cap screwed onto the top of the feeding hopper, and a cleaning mechanism installed on the protective box. When materials are added to the feeding hopper through the feeding hopper and feeding pipe, the exhaust fan operates to draw the powdery materials scattered around the feeding hopper into the interior of the feeding hopper and the protective box. The filter screen plate intercepts the powdery materials, preventing them from scattering into the surrounding air and avoiding potential harm to the health of workers, thus ensuring its safety and practicality.

[0009] The present invention is further configured such that the cleaning mechanism includes a motor, the motor is installed on the top of the protective box, the output end of the motor is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to the filter screen plate, multiple rotating plates are installed on the rotating shaft, and bristles are fixedly connected to the top of each of the multiple rotating plates. The top of the bristles contacts the bottom of the filter screen plate, which facilitates the cleaning of chemical materials on the filter screen plate and avoids clogging of the filter screen plate.

[0010] The present invention is further configured such that each of the rotating plates is fixedly connected to a connecting seat, and the connecting seat is fixedly connected to the rotating shaft by a plurality of first screws, which facilitates the disassembly and replacement of the rotating plate.

[0011] The present invention is further configured such that a stirring plate is installed at the bottom end of the rotating shaft, and the bottom end of the stirring plate is in contact with the safety filter screen, which facilitates the stirring of the chemical materials on the safety filter screen and facilitates the rapid filtration of the chemical materials.

[0012] The present invention is further configured such that the stirring plate is fixedly connected to the rotating shaft by two second screws, which facilitates the assembly and disassembly of the stirring plate.

[0013] The present invention is further configured such that the bottom end of the stirring plate is provided with two countersunk grooves, and the two second screws are respectively located inside the two countersunk grooves, so as to avoid the second screws being exposed on the outside of the stirring plate.

[0014] The present invention is further provided that a sealing gasket is provided between the protective cover and the feed hopper to ensure the sealing between the protective cover and the feed hopper.

[0015] The present invention is further provided that multiple rotating handles are uniformly fixedly connected to the outer side wall of the sealing cover, which facilitates the rotation of the sealing cover and the screwing of the sealing cover onto the feeding hopper.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a safety protection device for chemical engineering, which has the following beneficial effects:

[0018] 1. When adding chemical materials into the feed hopper through the feeding hopper and feeding pipe, start the exhaust fan. The exhaust fan will draw the air around the feed hopper into the feed hopper and protective box. The powdery chemical materials scattered around the feed hopper will be drawn into the feed hopper and protective box with the airflow. The powdery materials will be intercepted by the filter screen to prevent them from scattering into the surrounding air and avoid potential harm to the health of the workers, thus ensuring the safety and practicality of its use.

[0019] 2. The motor drives the rotating shaft, multiple rotating plates, brushes, and stirring plates to rotate. The stirring plates agitate the chemical materials on the safety filter screen, ensuring uniform distribution of the chemical materials and improving filtration efficiency. At the same time, the brushes effectively remove materials from the filter screen, preventing clogging and ensuring long-term stable operation of the system.

[0020] 3. Connecting seats are fixedly connected to multiple rotating plates. The connecting seats are connected to the rotating shaft by multiple first screws, which facilitates the disassembly and assembly of multiple rotating plates and the replacement of brush bristles. The stirring plate is fixedly connected to the rotating shaft by two second screws, which facilitates the disassembly and assembly of the stirring plate. By removing multiple rotating plates and stirring plates, it is easy to remove the filter screen from the inside of the protective box and replace the filter screen. Attached Figure Description

[0021] Figure 1 This is a front structural diagram of a safety protection device for chemical engineering according to the present invention;

[0022] Figure 2 This is a schematic diagram of the connection between the feed hopper and the safety filter in this utility model;

[0023] Figure 3 This is a structural diagram showing the combination of the protective cover, filter screen, rotating shaft, rotating plate, and stirring plate in this utility model.

[0024] Figure 4 This is a schematic diagram of the structure of the transfer plate, brush bristles, connecting seat and first screw connection of this utility model;

[0025] Figure 5 This is a schematic diagram of the connection between the protective cover, protective box, and filter screen in this utility model.

[0026] In the diagram: 1. Feed hopper; 2. Safety filter; 3. Protective cover; 4. Protective box; 5. Exhaust fan; 6. Exhaust pipe; 7. Filter plate; 8. Feeding pipe; 9. Feed hopper; 10. Sealing cover; 11. Motor; 12. Shaft; 13. Rotating plate; 14. Brush bristles; 15. Connecting seat; 16. First screw; 17. Mixing plate; 18. Second screw; 19. Countersunk groove; 20. Sealing gasket; 21. Rotary handle. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A safety protection device for chemical engineering includes a feed hopper 1, a safety filter 2 installed inside the feed hopper 1, a protective cover 3 installed at the top of the feed hopper 1, a sealing gasket 20 between the protective cover 3 and the feed hopper 1 to ensure the airtightness between the protective cover 3 and the feed hopper 1, a protective box 4 connected to the top of the protective cover 3, an exhaust fan 5 installed at the top of the protective cover 3, the input end of the exhaust fan 5 connected to the interior of the protective box 4 through an exhaust pipe 6, a filter screen 7 installed inside the protective box 4, a feeding pipe 8 connected to the protective cover 3, a feeding hopper 9 connected to the top of the feeding pipe 8, a sealing cover 10 screwed onto the top of the feeding hopper 9, and multiple rotating handles 21 evenly fixed to the outer wall of the sealing cover 10 to facilitate rotation of the sealing cover 10 and to facilitate screwing the sealing cover 10 onto the feeding hopper 9. A cleaning mechanism is installed on the protective box 4.

[0031] Specifically, when chemical materials are added into the feed hopper 1 through the feeding hopper 9 and the feeding pipe 8, the exhaust fan 5 is started. The exhaust fan 5 draws air from around the feeding hopper 9 into the feed hopper 1 and the protective box 4. Powdered chemical materials scattered around the feeding hopper 9 are drawn into the feed hopper 1 and the protective box 4 with the airflow. The powdered materials are intercepted by the filter screen 7 to prevent them from scattering into the surrounding air, thus avoiding potential harm to the health of the workers and ensuring the safety and practicality of its use.

[0032] Please see Figure 1 , Figure 3 and Figure 4 The cleaning mechanism includes a motor 11, which is mounted on the top of the protective box 4. A rotating shaft 12 is fixedly connected to the output end of the motor 11. The rotating shaft 12 is rotatably connected to the filter screen 7. Multiple rotating plates 13 are mounted on the rotating shaft 12, and brush bristles 14 are fixedly connected to the top of each rotating plate 13. The tips of the brush bristles 14 contact the bottom of the filter screen 7, facilitating the cleaning of chemical materials on the filter screen 7 and preventing clogging. Connecting seats 15 are fixedly connected to each rotating plate 13, and the connecting seats 15 are fixed to the rotating shaft 12 by multiple first screws 16. The rotating shaft 12 is connected to the rotating shaft 12 for easy disassembly and replacement of the rotating plate 13. The bottom end of the rotating shaft 12 is equipped with a stirring plate 17, which is in contact with the safety filter screen 2. This facilitates the stirring of the chemical materials on the safety filter screen 2 and the rapid filtration of the chemical materials. The stirring plate 17 is fixedly connected to the rotating shaft 12 by two second screws 18, which facilitates the disassembly and assembly of the stirring plate 17. The bottom end of the stirring plate 17 is provided with two countersunk grooves 19, and the two second screws 18 are located inside the two countersunk grooves 19 respectively, so as to prevent the second screws 18 from being exposed on the outside of the stirring plate 17.

[0033] Specifically, the motor 11 drives the rotating shaft 12, multiple rotating plates 13, brushes 14, and stirring plate 17 to rotate. The stirring plate 17 stirs the chemical materials on the safety filter screen 2, making the chemical materials evenly distributed and improving the filtration efficiency. At the same time, the brushes 14 can effectively remove materials on the filter screen 7, prevent clogging, and ensure long-term stable operation of the system. Each of the multiple rotating plates 13 is fixedly connected to a connecting seat 15, which is connected to the rotating shaft 12 by multiple first screws 16, making it easy to disassemble and assemble the multiple rotating plates 13 and replace the brushes 14. The stirring plate 17 is fixedly connected to the rotating shaft 12 by two second screws 18, making it easy to disassemble and replace the stirring plate 17. By removing the multiple rotating plates 13 and the stirring plate 17, it is easy to remove the filter screen 7 from the inside of the protective box 4 for replacement.

[0034] In summary, when using the overall equipment:

[0035] Unscrew the sealing cap 10, then add the corresponding chemical materials into the feed hopper 1 through the feeding hopper 9 and the feeding pipe 8. At the same time, start the exhaust fan 5. The exhaust fan 5 draws the air around the feeding hopper 9 into the feed hopper 1 and the protective box 4. The powdery chemical materials scattered around the feeding hopper 9 are drawn into the feed hopper 1 and the protective box 4 with the airflow. The powdery materials are intercepted by the filter screen 7. The chemical materials that fall on the safety filter screen 2 fall into the corresponding chemical processing equipment through the safety filter screen 2. At the same time, the motor 11 drives the rotating shaft 12, multiple rotating plates 13, brush bristles 14 and stirring plate 17 to rotate. The stirring plate 17 stirs the chemical materials on the safety filter screen 2, making the chemical materials evenly distributed, so that the chemical materials can fall through the mesh of the safety filter screen 2. At the same time, the brush bristles 14 can effectively remove the materials on the filter screen 7 to prevent the filter screen 7 from being blocked. After the materials are added, stop the exhaust fan 5 and screw the sealing cap 10 onto the feeding hopper 9.

[0036] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for chemical engineering, comprising a feed hopper (1), wherein a safety filter (2) is installed inside the feed hopper (1), characterized in that: The top of the feed hopper (1) is equipped with a protective cover (3), and the top of the protective cover (3) is connected to a protective box (4). The top of the protective cover (3) is equipped with an exhaust fan (5), and the input end of the exhaust fan (5) is connected to the inside of the protective box (4) through an exhaust pipe (6). The inside of the protective box (4) is equipped with a filter screen (7). The protective cover (3) is connected with a feeding pipe (8), and the top of the feeding pipe (8) is connected to a feeding hopper (9). The top of the feeding hopper (9) is screwed with a sealing cap (10). The protective box (4) is equipped with a cleaning mechanism.

2. The safety protection device for chemical engineering according to claim 1, characterized in that: The cleaning mechanism includes a motor (11), which is installed on the top of the protective box (4). The output end of the motor (11) is fixedly connected to a rotating shaft (12), which is rotatably connected to the filter screen (7). Multiple rotating plates (13) are installed on the rotating shaft (12), and brush bristles (14) are fixedly connected to the top of each of the multiple rotating plates (13). The top of the brush bristles (14) contacts the bottom of the filter screen (7).

3. The safety protection device for chemical engineering according to claim 2, characterized in that: Each of the rotating plates (13) is fixedly connected to a connecting seat (15), and the connecting seat (15) is fixedly connected to the rotating shaft (12) by a plurality of first screws (16).

4. A safety protection device for chemical engineering according to claim 2, characterized in that: A stirring plate (17) is installed at the bottom end of the rotating shaft (12), and the bottom end of the stirring plate (17) is in contact with the safety filter (2).

5. A safety protection device for chemical engineering according to claim 4, characterized in that: The stirring plate (17) is fixedly connected to the rotating shaft (12) by two second screws (18).

6. A safety protection device for chemical engineering according to claim 4, characterized in that: The bottom end of the stirring plate (17) is provided with two countersunk grooves (19), and two second screws (18) are located inside the two countersunk grooves (19) respectively.

7. A safety protection device for chemical engineering according to claim 1, characterized in that: A sealing gasket (20) is provided between the protective cover (3) and the feed hopper (1).

8. A safety protection device for chemical engineering according to claim 1, characterized in that: Multiple throttles (21) are uniformly fixedly connected to the outer wall of the sealing cover (10).

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