Protective device for quicklime production

Abstract

This utility model belongs to the field of quicklime production technology, specifically disclosing a protective device for quicklime production. It includes an isolation box with an isolation door hinged to one side. An air inlet pipe is fixedly connected to the right side of the isolation box, and an air outlet pipe is fixedly connected to the left side. A transfer box is fixedly connected to the left end of the air outlet pipe, and an exhaust pipe is fixedly connected to the left side of the transfer box. An exhaust fan is fixedly connected to the inner wall of the exhaust pipe. A dust collection shell is snapped into the inside of the transfer box, and a filter screen is fixedly connected to the inner wall of the dust collection shell. A push-button switch is fixedly connected to the left side of the isolation box, and the exhaust fan is electrically connected to the push-button switch via a wire. This utility model, by setting up an open-top transfer box and an easily accessible dust collection shell, eliminates the need for cleaning from the side of the dust collection components during the entire cleaning process. It also effectively avoids obstruction from internal components, achieving rapid and thorough cleaning of collected dust and significantly improving maintenance efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of quicklime production technology, specifically a protective device for quicklime production. Background Technology

[0002] Quicklime production is an industrial process in which natural rocks (such as limestone) whose main component is calcium carbonate are calcined at temperatures above 900°C in a high-temperature calcining furnace to decompose into calcium oxide (i.e., quicklime) and carbon dioxide. It includes raw material crushing, screening, calcination, cooling and finished product storage. When the production process involves raw material crushing and screening that generates a large amount of dust, the calcination process that releases high-temperature heat and harmful gases, or when the finished quicklime reacts with water and releases heat, which can easily irritate human skin and mucous membranes, protective devices are required.

[0003] The existing utility model with authorization announcement number CN220258304U discloses a protective device for quicklime production. It is equipped with a motor to drive an exhaust fan to effectively absorb the dust from the internal crusher. The protective net at the front end of the connecting pipe can effectively prevent stones from jumping out of the crusher from hitting the exhaust fan and causing damage. The collected dust is then stored in a storage box. After the work is completed, the cover is opened to discharge the dust through the outlet.

[0004] However, the following problems still exist during use: the cover is located on one side of the storage box, and the storage box contains components such as motors, drive shafts, and rotating rods. When cleaning the inside of the storage box from one side, these components will obstruct the cleaning, making it impossible to quickly and effectively clean the dust inside the storage box.

[0005] Therefore, we propose a protective device for quicklime production to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a protective device for quicklime production, so as to solve the technical problem that the collected dust cannot be cleaned up quickly and effectively in the prior art.

[0007] To solve the above technical problems, the technical solution of this utility model is as follows: a protective device for quicklime production, including an isolation box, an isolation door movably hinged to one side of the isolation box, an air inlet pipe fixedly connected to the right side of the isolation box, an air outlet pipe fixedly connected to the left side of the isolation box, a transfer box fixedly connected to the left end of the air outlet pipe, an exhaust pipe fixedly connected to the left side of the transfer box, an exhaust fan fixedly connected to the inner wall of the exhaust pipe, a dust collection shell snapped into the inside of the transfer box, a filter screen fixedly connected to the inner wall of the dust collection shell, a push-button switch fixedly connected to the left side of the isolation box, and the exhaust fan electrically connected to the push-button switch via a wire.

[0008] Furthermore, support plates are fixedly connected to both sides of the isolation box, and two hand-tightened threaded rods are threadedly connected to the inner wall of each support plate.

[0009] Furthermore, each of the hand-tightened threaded rods is fixedly connected to a connecting post at its bottom end, and each of the connecting posts is fixedly connected to a caster wheel at its bottom end.

[0010] Furthermore, a limiting rod is fixedly connected to the outer edge of the isolation door, and a fixing rod is fixedly connected to the side of the isolation box on the same side as the limiting rod. A limiting plate is rotatably connected to the outer surface of the fixing rod, and a limiting groove is opened at the other end of the limiting plate. The limiting plate is movably engaged with the limiting rod through the limiting groove.

[0011] Furthermore, the inner wall of the air intake pipe is threadedly connected to a disassembly shell, and the inner wall of the disassembly shell is fixedly connected to a dustproof net.

[0012] Furthermore, a pull rod is fixedly connected to the upper surface of the dust collection shell, and an anti-slip sleeve is fixedly connected to the outer surface of the pull rod.

[0013] This utility model has the following advantages compared with the prior art:

[0014] 1. This utility model features a transfer box with an open top and a dust collection shell for easy access. An exhaust fan draws dust from inside the isolation box into the dust collection shell, where it is filtered and collected by a filter screen. For cleaning, simply turn off the exhaust fan, remove the dust collection shell, and empty the dust. If necessary, clean any remaining dust inside the transfer box. The entire cleaning process does not require access to the side of the dust collection components, effectively avoiding obstruction from internal parts. This allows for rapid and thorough cleaning of the collected dust, significantly improving maintenance efficiency.

[0015] 2. This utility model adopts a snap-fit ​​dust collection shell and is equipped with a pull rod with an anti-slip sleeve, allowing operators to easily remove and install the dust collection shell without tools, simplifying the cleaning process and reducing labor intensity. The moving mechanism, consisting of a hand-tightened threaded rod, connecting column, and casters, allows the device to move flexibly to adapt to different workstation needs, and ensures a tight seal by fitting the bottom to the ground after positioning, combining portability and stability. The combination of a rotating limiting plate and a limiting rod enables rapid opening and closing and reliable locking of the isolation door, ensuring airtight safety during production. The threaded, removable dustproof screen inside the air inlet pipe effectively blocks large external particles from entering, and is easy to clean or replace regularly, maintaining smooth airflow and clean air intake, thus extending the service life of the internal equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side view of the isolation box of this utility model.

[0018] Figure 3 This is a cross-sectional view of the intake pipe of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the transfer box of this utility model;

[0020] Figure 5 This is a cross-sectional structural diagram of the air extraction pipe of this utility model;

[0021] Figure 6 This is a cross-sectional structural diagram of the dust collection shell of this utility model.

[0022] In the diagram: 1. Isolation box; 2. Isolation door; 3. Air inlet pipe; 4. Transfer box; 5. Extraction pipe; 6. Exhaust pipe; 7. Dust collection shell; 8. Filter screen; 9. Exhaust fan; 10. Push button switch; 11. Support plate; 12. Hand-tight threaded rod; 13. Connecting column; 14. Casters; 15. Fixing rod; 16. Limiting rod; 17. Limiting plate; 18. Pull rod; 19. Anti-slip sleeve; 20. Disassembly shell; 21. Dustproof net. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figures 1 to 6 The protective device for quicklime production shown includes an isolation box 1. An isolation door 2 is movably hinged to one side of the isolation box 1. Opening the isolation door 2 allows the quicklime production equipment to be enclosed inside the isolation box 1, and then closing the isolation door 2 is sufficient. An air inlet pipe 3 is fixedly connected to the right side of the isolation box 1, and an air outlet pipe 6 is fixedly connected to the left side of the isolation box 1. A transfer box 4 is fixedly connected to the left end of the air outlet pipe 6. The top of the transfer box 4 is open, and an exhaust pipe 5 is fixedly connected to the left side of the transfer box 4. An exhaust fan is fixedly connected to the inner wall of the exhaust pipe 5. 9. A dust collection shell 7 is snapped into the interior of the transfer box 4. The dust collection shell 7 can be inserted into the transfer box 4 through the opening at the top of the transfer box 4, and the outer side of the dust collection shell 7 is in contact with the inner wall of the transfer box 4. Two filter screens 8 are fixedly connected to the inner wall of the dust collection shell 7. The filter screens 8 are made of polytetrafluoroethylene coated anti-dust filter screens. A push-button switch 10 is fixedly connected to the left side of the isolation box 1. The exhaust fan 9 is electrically connected to the push-button switch 10 through a wire. The push-button switch 10 is used to control the opening and closing of the exhaust fan 9.

[0025] Support plates 11 are fixedly connected to both sides of the isolation box 1. Two hand-tightened threaded rods 12 are threadedly connected to the inner wall of each support plate 11. The support plates 11 are fixed to both sides of the isolation box 1, providing an installation base for the hand-tightened threaded rods 12. The hand-tightened threaded rods 12 are connected to the support plates 11 by threads and can be rotated to adjust their extension length.

[0026] Each hand-tightened threaded rod 12 is fixedly connected to a connecting post 13 at its bottom end, and each connecting post 13 is fixedly connected to a caster wheel 14 at its bottom end. The connecting post 13 fixes the hand-tightened threaded rod 12 to the caster wheel 14. The caster wheel 14 can rise and fall with the hand-tightened threaded rod 12. The caster wheel 14 can rotate and roll horizontally at multiple angles, facilitating the movement of the device. Thus, pushing the isolation box 1 can drive the entire device to move via the caster wheel 14, flexibly adjusting the position of the device in the production workshop to adapt to the protection requirements of different production stations. Furthermore, the connecting post 13 can prevent the hand-tightened threaded rod 12 from directly contacting the caster wheel 14, reducing wear and extending the service life of the components.

[0027] A limit rod 16 is fixedly connected to the outer edge of the isolation door 2. A fixed rod 15 is fixedly connected to the side of the isolation box 1 on the same side as the limit rod 16. A limit plate 17 is rotatably connected to the outer surface of the fixed rod 15. A limit groove is opened at the other end of the limit plate 17, and the limit plate 17 is movably engaged with the limit rod 16 through the limit groove. The fixed rod 15 and the limit rod 16 provide the basic structure for locking the isolation door 2. The limit plate 17 can rotate around the fixed rod 15 and can engage with the limit rod 16 after rotation. The operation is simple. The isolation door 2 can be locked or unlocked by simply rotating the limit plate 17, which facilitates the quick entry of personnel into the isolation box 1 to maintain the equipment, while ensuring the airtightness after locking.

[0028] The inner wall of the air inlet pipe 3 is threadedly connected to a disassembly housing 20, and a dustproof net 21 is fixedly connected to the inner wall of the disassembly housing 20. When the airflow enters from the air inlet pipe 3, it must pass through the dustproof net 21. The dustproof net 21 can filter dust and impurities in the outside air, preventing them from entering the isolation box 1 and contaminating the quicklime or affecting the operation of the equipment. The threaded disassembly housing 20 can be unscrewed, making it convenient to regularly remove the dustproof net 21 for cleaning or replacement, ensuring the filtration effect and maintaining smooth airflow.

[0029] A pull rod 18 is fixedly connected to the upper surface of the dust collection shell 7, and an anti-slip sleeve 19 is fixedly connected to the outer surface of the pull rod 18. The pull rod 18 is fixed to the upper surface of the dust collection shell 7, and the anti-slip sleeve 19 covers the outer surface of the pull rod 18. The dust collection shell 7 is snapped into the transfer box 4. By pulling the pull rod 18, the dust collection shell 7 can be quickly removed from the transfer box 4, which is convenient for cleaning the collected dust. The anti-slip sleeve 19 increases the comfort of hand grip and prevents slippage when pulling, thereby improving the dust cleaning efficiency.

[0030] The specific working process of this utility model is as follows:

[0031] In use, the operator first manually rotates the threaded rod 12 to adjust the casters 14 below the connecting column 13 to contact the ground, supporting the isolation box 1 so that the bottom of the isolation box 1 is about 5 cm off the ground. Then, the operator pushes the device to move the isolation box 1 next to the equipment using the casters 14. The operator then lifts the limiting plate 17 to release the engagement between the limiting plate 17 and the limiting rod 16, opens the isolation door 2, pushes the isolation box 1 to cover the equipment inside the isolation box 1, closes the isolation door 2, rotates the limiting plate 17 to re-engage with the limiting rod 16, and locks the isolation door 2. Finally, the operator lifts the casters 14 by turning the threaded rod 12 until the bottom of the isolation box 1 is in contact with the ground, ensuring that the equipment is effectively enclosed.

[0032] The exhaust fan 9 is activated by the button switch 10. The exhaust fan 9 is powered on and runs, creating a negative pressure in the exhaust pipe 5. This causes the airflow in the isolation box 1 to pass through the exhaust pipe 6 and the transfer box 4 in sequence into the exhaust pipe 5, and finally be discharged outside the device. At the same time, the outside air enters the isolation box 1 through the intake pipe 3 under the action of the air pressure difference. When the airflow passes through the dustproof net 21 inside the disassembled shell 20, the dust and impurities in the air are filtered out, ensuring that the air entering the box is clean.

[0033] During production, the dust generated by the equipment enters the transfer box 4 with the airflow and is intercepted and collected by the filter screen 8 inside the dust collection shell 7. The gas continues to be discharged through the exhaust pipe 5, so that ventilation and dust removal are carried out simultaneously. When it is necessary to clean the dust, turn off the exhaust fan 9, pull the lever 18 with the anti-slip sleeve 19, and take the dust collection shell 7 out of the transfer box 4 for cleaning. After cleaning, put it back into the dust collection shell 7.

Claims

1. A protective device for quicklime production, comprising an isolation box (1), characterized in that: An isolation door (2) is movably hinged to one side of the isolation box (1). An air inlet pipe (3) is fixedly connected to the right side of the isolation box (1). An air outlet pipe (6) is fixedly connected to the left side of the isolation box (1). A transfer box (4) is fixedly connected to the left end of the air outlet pipe (6). An exhaust pipe (5) is fixedly connected to the left side of the transfer box (4). An exhaust fan (9) is fixedly connected to the inner wall of the exhaust pipe (5). A dust collection shell (7) is snapped into the inside of the transfer box (4). A filter screen (8) is fixedly connected to the inner wall of the dust collection shell (7). A push-button switch (10) is fixedly connected to the left side of the isolation box (1). The exhaust fan (9) is electrically connected to the push-button switch (10) through a wire.

2. The protective device for quicklime production according to claim 1, characterized in that: The isolation box (1) is fixedly connected to two support plates (11) on both sides, and each support plate (11) has two hand-tightened threaded rods (12) threadedly connected to its inner wall.

3. The protective device for quicklime production according to claim 2, characterized in that: Each of the hand-tightened threaded rods (12) is fixedly connected to a connecting post (13) at its bottom end, and each of the connecting posts (13) is fixedly connected to a caster wheel (14) at its bottom end.

4. The protective device for quicklime production according to claim 1, characterized in that: A limiting rod (16) is fixedly connected to the outer side of the isolation door (2). A fixing rod (15) is fixedly connected to the side of the isolation box (1) on the same side as the limiting rod (16). A limiting plate (17) is rotatably connected to the outer surface of the fixing rod (15). A limiting groove is opened at the other end of the limiting plate (17). The limiting plate (17) is movably engaged with the limiting rod (16) through the limiting groove.

5. The protective device for quicklime production according to claim 1, characterized in that: The inner wall of the air intake pipe (3) is threadedly connected to a disassembly shell (20), and the inner wall of the disassembly shell (20) is fixedly connected to a dustproof net (21).

6. The protective device for quicklime production according to claim 1, characterized in that: A pull rod (18) is fixedly connected to the upper surface of the dust collection shell (7), and an anti-slip sleeve (19) is fixedly connected to the outer surface of the pull rod (18).

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