Automatic butt joint device for caustic soda drying kettle

Abstract

The utility model discloses a kind of sodium hydrosulfite drying kettle automatic docking devices, including support table and fan-shaped top frame swing mounted on it, top rack is connected with material pipe and cover taking mechanism inside, support table other side is equipped with blind cover and the input pipe of sealing tester, material pipe and cover taking mechanism are all equipped with axial propulsion mechanism and infrared positioning assembly.Cover taking mechanism contains cylindrical connecting part, clamping drive part and clamping block, top frame is driven swing positioning by motor, gear, rack, material pipe is locked by locking cylinder after docking, and lock block is embedded in input pipe annular groove locking.This device realizes cover-docking-sealing detection full automation, eliminates material exposure and gas dissipation, ensures production safety, improves efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of automatic pipeline docking technology, and in particular to an automatic docking device for a sodium hydrosulfite drying kettle. Background Technology

[0002] Currently, the drying process in sodium hydrosulfite production is predominantly manual, posing numerous safety hazards and efficiency bottlenecks. Operators must manually connect pipes, operate valves, and load and unload materials. As a hazardous chemical, sodium hydrosulfite is highly susceptible to decomposition under high-temperature drying conditions. During manual feeding, the sodium hydrosulfite is directly exposed to air, easily absorbing oxygen and oxidizing, and may also absorb moisture and deteriorate, releasing irritating sulfur dioxide gas. These factors not only increase the risks during operation and threaten the personal safety of operators but may also lead to a decline in product quality. Furthermore, manual operation is characterized by high labor costs and low efficiency, failing to meet the high standards of safety and efficiency required by modern chemical production. Summary of the Invention

[0003] The technical problem this invention aims to solve is that the manual operation mode in the drying process of sodium hydrosulfite production has high safety risks, easily affects product quality, has high labor costs and low efficiency, making it difficult to meet the high standards of safety and efficiency required for modern chemical production.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic docking device for sodium hydrosulfite drying kettle, including a support platform and a top frame swinging on the support platform. A receiving pipe and a cap removal mechanism are horizontally installed inside the top frame. An input pipe is installed on the other side of the support platform. Both the receiving pipe and the cap removal mechanism are equipped with an axial propulsion mechanism and can be connected to the input pipe respectively under the drive of the axial propulsion mechanism. A sealing tester is provided on the input pipe, and a blind cap is fastened to the movable end of the input pipe.

[0005] Preferably, the top frame is fan-shaped and rotatably connected to the support platform, and the distance between the axis of the receiving pipe and the cover-removing mechanism and the center of the top frame is equal.

[0006] Preferably, an arc-shaped support bar is concentrically fixed at the bottom of the top frame, a support shaft is horizontally rotatably arranged inside the support platform, an arc-shaped through groove is opened in the support bar along the length direction, and the support shaft is located in the through groove.

[0007] Preferably, the support shafts are distributed on both sides of the support platform, and driving components are also installed on both sides of the support platform. The driving components include a motor and a gear mounted on the output shaft of the motor. A rack that meshes with the gear is installed at the bottom of the support bar.

[0008] Preferably, the propulsion mechanism includes a connecting frame slidably mounted on the inner side of the top frame, the receiving pipe or cap removal mechanism is fixed to the inner side of the connecting frame, and a cylinder for pushing the connecting frame to move is installed inside the top frame.

[0009] Preferably, a locking cylinder is hinged to the bottom of the connecting frame, and a connecting rod is coaxially fixedly connected to the output end of the locking cylinder. A locking rod is hinged to the movable end of the connecting rod, and the movable end of the locking rod is hinged to the end side wall of the receiving pipe. When the cylinder is fully extended, the connection end of the locking rod and the connecting rod is located in the annular groove on the outer wall of the input pipe.

[0010] Preferably, a locking block is fixedly provided at the connection end of the locking rod and the connecting rod, and the locking block is adapted to the inner sidewall of the annular groove.

[0011] Preferably, both the receiving tube and the cap removal mechanism are equipped with infrared receivers that are compatible with the infrared transmitter at the movable end of the input tube.

[0012] Preferably, the cap removal mechanism includes a cylindrical connecting part, a clamping drive part installed on the opposite outer side wall of the cylindrical connecting part, and a clamping block vertically slidably arranged at the top and bottom of the port of the cylindrical connecting part, with the clamping drive part being connected to the clamping block in a driving manner.

[0013] This utility model provides an automatic docking device for a sodium hydrosulfite drying kettle, which has the following beneficial effects.

[0014] The entire process of cap removal, docking, and sealing testing is automated, completely replacing manual operation. The receiving pipe and cap removal mechanism are docked with the input pipe under the drive of the top frame, avoiding direct contact between operators and the sodium hydrosulfite and the high-temperature drying environment. The cap removal mechanism uses a clamping drive unit to control the clamping block to accurately clamp the blind cap of the input pipe, eliminating the need for manual opening and material exposure. After the receiving pipe and input pipe are docked, the locking cylinder drives the locking rod and connecting rod to lock the locking block into the annular groove of the input pipe, forming a firm lock. In conjunction with the sealing tester, the sealing performance is detected in real time, eliminating the risk of material leakage and the escape of sulfur dioxide irritating gas. This solves the safety threats that sodium hydrosulfite, as a hazardous chemical, is prone to cause during manual operation and fully complies with the safety regulations for the production of hazardous chemicals. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the connecting component in an embodiment of the present utility model.

[0016] Figure 2 This is a side view of an embodiment of the present utility model.

[0017] Figure 3 This is a side view of the top frame in an embodiment of this utility model.

[0018] Figure 4 This is a side view of the cover-removing mechanism in an embodiment of this utility model.

[0019] In the diagram: 1. Support platform; 2. Support bar; 3. Drive component; 4. Support shaft; 5. Top frame; 6. Guide bar; 7. Connecting frame; 8. Locking rod; 9. Receiving pipe; 10. Connecting rod; 11. Locking block; 12. Input pipe; 13. Sealing tester; 14. Blind cap; 15. Cap removal mechanism; 16. Clamping block; 17. Locking cylinder; 18. First sliding plate; 19. Second sliding plate. Detailed Implementation

[0020] like Figures 1 to 4 As shown. This utility model provides an automatic docking device for a sodium hydrosulfite drying kettle, including a support platform 1 and a top frame 5 oscillatingly mounted on the support platform 1. A receiving pipe 9 and a cap removal mechanism 15 are horizontally installed inside the top frame 5. An input pipe 12 is installed on the other side of the support platform 1. Both the receiving pipe 9 and the cap removal mechanism 15 are equipped with an axial propulsion mechanism and can be connected to the input pipe 12 respectively under the drive of the axial propulsion mechanism. A sealing tester 13 is provided on the input pipe 12, and a blind cap 14 is fastened to the movable end of the input pipe 12.

[0021] When no material is being fed, the blind cap 14 is fitted onto the input pipe 12 to maintain a sealed state. When automatic feeding is required, the angle of the cap-removing mechanism 15 is adjusted by the top frame 5 so that the cap-removing mechanism 15 is directly facing the blind cap 14. After the cap-removing mechanism 15 removes the blind cap 14, it retracts. Then, the top frame 5 continues to swing, causing the receiving pipe 9 to move to a state aligned with the input pipe 12. Then, the feeding mechanism of the receiving pipe 9 pushes the receiving pipe 9 axially to complete the docking with the input pipe 12. Afterwards, nitrogen gas is introduced into the input pipe 12 and the receiving pipe 9 through the sealing tester 13 on the input pipe 12 to maintain pressure and test the sealing performance of the pipeline. After the connection pipeline is confirmed to be sealed, the exhaust valve of the pipeline is opened to release the pressure inside the pipeline, and the material valve on the pipeline is opened to automatically convey the material. If a leak is detected in the connection pipeline, the leak source is manually removed, and then the pressure is retested.

[0022] like Figure 1 and Figure 3 As shown. The top frame 5 is fan-shaped and rotatably connected to the support platform 1. The axis of the receiving pipe 9 and the sleeve 14 is equidistant from the center of the top frame 5. By driving the top frame 5 to rotate around the center, the receiving pipe 9 and the sleeve 14 are rotated, thereby realizing the switching between the receiving pipe 9 and the sleeve 14 and the input pipe 12.

[0023] like Figure 1As shown, an arc-shaped support bar 2 is concentrically fixed at the bottom of the top frame 5. A support shaft 4 is horizontally rotatably arranged inside the support platform 1. An arc-shaped through groove is formed in the support bar 2 along its length, and the support shaft 4 is located in the through groove. The two support shafts 4 provide stable support for the support bar 2 and the top frame 5, and the rotatable arrangement of the support shafts 4 can reduce the friction between the support shaft 4 and the support bar 2.

[0024] like Figure 1 As shown. The support shafts 4 are distributed on both sides of the support platform 1. Drive components 3 are also installed on both sides of the support platform 1. The drive components 3 include a motor and a gear mounted on the motor output shaft. A rack meshing with the gear is installed on the inner side of the support bar 2. The drive components 3 on both sides of the support platform 1 synchronously drive the support bar 2 to rotate. The motor drives the gear to rotate, and the gear drives the rack meshing with it to rotate, thereby realizing the rotation of the top frame 5.

[0025] like Figure 1 As shown. The propulsion mechanism includes a connecting frame 7 slidably installed inside the top frame 5. The receiving pipe 9 or the cap-removing mechanism 15 is fixed inside the connecting frame 7. A cylinder is installed inside the top frame 5 to push the connecting frame 7 to move. The cylinder pushes the connecting frame 7 to slide horizontally, thereby driving the receiving pipe 9 or the cap-removing mechanism 15 to move horizontally, realizing the docking of the receiving pipe 9 or the cap-removing mechanism 15 with the input pipe 12. When the receiving pipe 9 docks, it conveys the material. When the cap-removing mechanism 15 docks, it grabs or places the blind cap 14.

[0026] like Figure 1 and Figure 2 As shown. A locking cylinder 17 is hinged to the bottom of the connecting frame 7. A connecting rod 10 is coaxially fixed to the output end of the locking cylinder 17. A locking rod 8 is hinged to the movable end of the connecting rod 10. The movable end of the locking rod 8 is hinged to the end side wall of the receiving pipe 9. When the cylinder is fully extended, the connection end of the locking rod 8 and the connecting rod 10 is located in the annular groove on the outer wall of the input pipe 12.

[0027] During the extension of the cylinder, the connecting frame 7 is pushed to move, and the connecting frame 7 pushes the locking cylinder 17 to move. After the docking of the receiving pipe 9 and the input pipe 12 is completed, the locking cylinder 17 is controlled to extend. The locking cylinder 17 pushes the locking rod 8 to rotate through the connecting rod 10, so that the locking rod 8 rotates to contact the outer wall of the input pipe 12, thereby locking the interface between the receiving pipe 9 and the input pipe 12.

[0028] like Figure 2 As shown. A locking block 11 is fixedly provided at the connection end of the locking rod 8 and the connecting rod 10. The locking block 11 is adapted to the inner sidewall of the annular groove. The end of the locking block 11 near the connecting rod 10 is provided with an inclined surface. When the locking rod 8 contacts the input pipe 12, the inclined surface on the locking block 11 can fit against the inner sidewall of the annular groove to form a hook-like connection.

[0029] In a preferred embodiment of this utility model, both the receiving tube 9 and the cap-removing mechanism 15 are equipped with infrared receivers adapted to the infrared transmitter at the movable end of the input tube 12. When the infrared receiver receives a signal from the infrared transmitter, it indicates that alignment has been achieved, and subsequent docking operations can proceed.

[0030] like Figure 1 and Figure 4 As shown. The cap-removing mechanism 15 includes a cylindrical connecting part, a clamping drive part installed on the opposite outer wall of the cylindrical connecting part, and a clamping block 16 vertically slidably arranged at the top and bottom of the port of the cylindrical connecting part. The clamping drive part is connected to the clamping block 16. The clamping drive part is an electric push rod installed on the cylindrical connecting part. The electric push rod pulls the first sliding disk 18 connected to its output end to move. The first sliding disk 18 is installed in a horizontal groove. The first sliding disk 18 drives the connecting rod hinged to it to move. The connecting rod pulls the second sliding disk 19 in the vertical groove to move. The second sliding disk drives the clamping block 16 to move through the vertical rod. When the electric push rod extends, it can synchronously control the clamping block 16 to open. When the electric push rod retracts, it synchronously controls the clamping block 16 to close. The end of the cylindrical connector is provided with a receiving groove for the blind cover 14. When the cover removal mechanism 15 docks with the blind cover 14, the blind cover 14 enters the receiving groove. During the process of the blind cover 14 entering, the elastic locking structure on both sides of the blind cover 14 is squeezed, causing the blind cover 14 to separate from the input pipe 12. The clamping block 16 clamps the blind cover 14 and removes the blind cover 14. The installation process is the reverse of the clamping process.

Claims

1. An automatic docking device for a sodium hydrosulfite drying kettle, characterized in that: Includes a support platform (1) and a top frame (5) that is oscillatingly mounted on the support platform (1). A receiving pipe (9) and a cap removal mechanism (15) are horizontally installed inside the top frame (5). An input pipe (12) is installed on the other side of the support platform (1). Both the receiving pipe (9) and the cap removal mechanism (15) are equipped with an axial propulsion mechanism and can be connected to the input pipe (12) respectively under the drive of the axial propulsion mechanism. A sealing tester (13) is provided on the input pipe (12). A blind cap (14) is fastened to the movable end of the input pipe (12).

2. The automatic docking device for the sodium hydrosulfite drying kettle as described in claim 1, characterized in that: The top frame (5) is fan-shaped and is rotatably connected to the support platform (1). The axis of the receiving pipe (9) and the cover removal mechanism (15) is equidistant from the center of the top frame (5).

3. The automatic docking device for the sodium hydrosulfite drying kettle as described in claim 2, characterized in that: The bottom of the top frame (5) is concentrically fixed with an arc-shaped support bar (2), and a support shaft (4) is horizontally rotatably arranged inside the support platform (1). An arc-shaped through groove is opened in the support bar (2) along the length direction, and the support shaft (4) is located in the through groove.

4. The automatic docking device for the sodium hydrosulfite drying kettle as described in claim 3, characterized in that: The support shaft (4) is distributed on both sides of the support platform (1). The support platform (1) is also equipped with a drive unit (3) on both sides. The drive unit (3) includes a motor and a gear mounted on the output shaft of the motor. The bottom of the support bar (2) is equipped with a rack that meshes with the gear.

5. The automatic docking device for the sodium hydrosulfite drying kettle as described in claim 1, characterized in that: The propulsion mechanism includes a connecting frame (7) that is slidably installed inside the top frame (5), the receiving pipe (9) or the cover removal mechanism (15) being fixed inside the connecting frame (7), and a cylinder for pushing the connecting frame (7) to move is installed inside the top frame (5).

6. The automatic docking device for the sodium hydrosulfite drying kettle as described in claim 5, characterized in that: The bottom of the connecting frame (7) is hinged with a locking cylinder (17). The output end of the locking cylinder (17) is coaxially fixedly connected with a connecting rod (10). The movable end of the connecting rod (10) is hinged with a locking rod (8). The movable end of the locking rod (8) is hinged to the end side wall of the receiving pipe (9). When the cylinder is fully extended, the connection end of the locking rod (8) and the connecting rod (10) is located in the annular groove on the outer wall of the input pipe (12).

7. The automatic docking device for the sodium hydrosulfite drying kettle as described in claim 6, characterized in that: A locking block (11) is fixedly provided at the connection end of the locking rod (8) and the connecting rod (10), and the locking block (11) is adapted to the inner sidewall of the annular groove.

8. The automatic docking device for the sodium hydrosulfite drying kettle as described in claim 1, characterized in that: Both the receiving tube (9) and the cap removal mechanism (15) are equipped with infrared receivers that are compatible with the infrared transmitter at the movable end of the input tube (12).

9. The automatic docking device for the sodium hydrosulfite drying kettle as described in claim 1, characterized in that: The cap removal mechanism (15) includes a cylindrical connecting part, a clamping drive part installed on the opposite outer side wall of the cylindrical connecting part, and a clamping block (16) vertically slidably arranged at the top and bottom of the port of the cylindrical connecting part. The clamping drive part is connected to the clamping block (16) in a driving manner.

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