Ammonia unloading and stopping device

Abstract

The utility model provides an ammonia water unloading tight stop device, including mobile slide, mobile slide below is equipped with horizontal rail, mobile slide bottom is equipped with a plurality of moving wheel, mobile slide top is equipped with the top platform, the top platform top surface is equipped with the vertical support, mobile slide middle part is equipped with the mounting platform plate, mounting platform plate top is equipped with the lifting mechanism, lifting mechanism middle part is equipped with the actuating mechanism, and the actuating mechanism end is equipped with the pressing subassembly, the lifting mechanism includes the mounting seat, the movable seat, the screw rod and the hand wheel, and the mounting seat is located vertical support top side surface. The utility model discloses the transverse movement of mobile slide on horizontal rail, cooperate the lifting adjustment of execution structure, so that the ammonia water unloading tight stop device can adapt to the ammonia water tank car of different positions, different car types, under the effect of the remote pressing emergency stop button of this ammonia water unloading tight stop device, not only the direct harm risk of ammonia water to operating personnel is eliminated, but also can shorten the accident response time, effectively control ammonia water leakage amount.

Description

Technical Field

[0001] This utility model relates to the field of ammonia transportation technology, specifically to an ammonia unloading emergency stop device. Background Technology

[0002] In coal-fired enterprises such as cement plants and power plants, ammonia water is commonly used as a denitrification agent. Ammonia water is usually transported to the plant by special tank trucks, and then pumped from the tank trucks to storage tanks using ammonia unloading pumps. Ammonia water has a strong pungent odor and is corrosive, posing serious hazards to human eyes, skin, and respiratory tract. A significant safety hazard exists in the existing ammonia unloading process: leaks may occur at the connection between the unloading hose and the pump truck due to loose connections, aging seals, or accidental pulling. In the event of a leak, on-site operators must immediately close the unloading valve on the tank truck or press the emergency stop button located at the rear of the tank truck to stop the ammonia unloading pump. However, when a leak occurs, ammonia gas spreads rapidly. Even with protective equipment, operating near the leak source poses significant health and personal safety risks, and the process is time-consuming, potentially allowing the leak to escalate.

[0003] In summary, there is a need for a remote emergency braking device that is simple in structure and easy to operate. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an ammonia unloading emergency stop device, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: Ammonia unloading emergency stopping device includes a movable slide, a horizontal track below the movable slide, multiple movable wheels at the bottom of the movable slide, a top platform at the top of the movable slide, a stand on the top surface of the top platform, a mounting plate in the middle of the movable slide, a lifting mechanism above the mounting plate, an actuator in the middle of the lifting mechanism, and a pressing component at the end of the actuator. The lifting mechanism includes a mounting base, a movable base, a lead screw, and a handwheel. The mounting base is located on the top side of the upright frame, the movable base is located on the top surface of the mounting platform, the mounting base is provided through the middle of the mounting base, the bottom of the lead screw engages with the movable base for rotation, the top of the lead screw is provided with a handwheel, and the actuator is located in the middle of the lead screw.

[0006] Furthermore, the bottom center of the movable wheel is provided with a self-locking universal wheel, and the center of the top platform is provided with a lifting port.

[0007] Furthermore, the actuator includes a lifting plate and a lifting seat. The lifting plate has a lifting seat on its side, which is threadedly connected to a lead screw. A cylinder is provided on the side of the lifting plate away from the lifting seat.

[0008] Furthermore, the actuator also includes a guide plate and a cylinder. The guide plate is mirror-mounted inside the lifting port and has an L-shaped structure. Positioning plates are provided at both ends of the lifting plate, and the positioning plates are slidably connected to the guide plate.

[0009] Furthermore, the pressing assembly includes a pressing cylinder, a buffer rod, a buffer head, and a spring. The pressing cylinder is located at the end of the cylinder piston rod. The pressing cylinder is equipped with a buffer rod inside. The buffer rod engages and slides with the pressing cylinder. One end of the buffer rod is equipped with a buffer head. The end of the buffer head away from the buffer head is equipped with a spring, which is located inside the pressing cylinder.

[0010] This utility model provides an emergency stopping device for unloading ammonia. Compared with the prior art, it has the following advantages: By moving the sliding table laterally on the horizontal track and adjusting the lifting mechanism, the ammonia unloading emergency stop device can adapt to ammonia tank trucks of different locations and models. With the remote pressing of the emergency stop button of the ammonia unloading emergency stop device, not only is the risk of direct harm to operators from ammonia eliminated, but the accident response time is also shortened, and the amount of ammonia leakage is effectively controlled. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 A schematic diagram of the ammonia unloading emergency stop device of this utility model is shown; Figure 2 A schematic diagram of the lifting mechanism of this utility model is shown; Figure 3 A schematic diagram of the actuator of this utility model is shown; Figure 4 A schematic diagram of the pressing component of this utility model is shown; Figure 5 A schematic diagram illustrating the use of this utility model is shown; The diagram shows: 1. Movable slide; 11. Movable wheel; 12. Self-locking caster wheel; 13. Top platform; 14. Stand; 15. Mounting platform; 2. Horizontal track; 3. Lifting mechanism; 31. Mounting seat; 32. Movable seat; 33. Lead screw; 34. Handwheel; 4. Actuator; 41. Lifting plate; 42. Lifting seat; 43. Guide plate; 44. Cylinder; 5. Pressing assembly; 51. Pressing cylinder; 52. Buffer rod; 53. Buffer head; 54. Spring; 6. Emergency stop button. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] To address the technical problems in the background section, the following ammonia unloading emergency stop device is provided: Combination Figures 1-5 As shown, the ammonia unloading emergency stopping device provided by this utility model includes a movable slide table 1, a horizontal track 2 below the movable slide table 1, multiple movable wheels 11 at the bottom of the movable slide table 1, a top platform 13 at the top of the movable slide table 1, a support frame 14 on the top surface of the top platform 13, a mounting plate 15 in the middle of the movable slide table 1, a lifting mechanism 3 above the mounting plate 15, an actuator 4 in the middle of the lifting mechanism 3, and a pressing component 5 at the end of the actuator 4. Through the horizontal track 2 below the movable slide table 1, the ammonia unloading emergency stopping device can move along the horizontal track 2 to laterally align with different stopping points. The lifting mechanism 3 of the ammonia tanker truck is a mounting base 31, a movable base 32, a lead screw 33, and a handwheel 34. The mounting base 31 is located on the top side of the upright frame 14, and the movable base 32 is located on the top surface of the mounting platform 15. The mounting base 31 is inserted through the middle of the mounting base 31. The bottom of the lead screw 33 engages with the movable base 32 and rotates. The handwheel 34 is located on the top of the lead screw 33. The actuator 4 is located in the middle of the lead screw 33. The vertical height of the actuator 4 can be easily adjusted by rotating the lead screw 33 in the lifting mechanism 3, so as to adapt to the difference in the height of the emergency stop button 6 at the rear of the ammonia tanker truck under different vehicle models and different parking conditions. In this embodiment, the bottom center of the movable wheel 11 is provided with a self-locking universal wheel 12, and the top platform 13 is provided with a lifting port in the middle. The lifting port provided in the middle of the top platform 13 facilitates the lifting adjustment of the actuator 4. The self-locking outward wheel makes it convenient for the staff to fix the position of the device after adjusting the horizontal position of the device, so as to facilitate the device to make stable contact with the emergency stop button 6 in the future. In this embodiment, the actuator 4 includes a lifting plate 41 and a lifting seat 42. The lifting plate 41 has a lifting seat 42 on its side. The lifting seat 42 is threadedly connected to the lead screw 33. The lifting plate 41 has a cylinder 44 on the side away from the lifting seat 42. The piston rod of the cylinder 44 is used to drive the pressing component 5 to move, so as to press the emergency stop button 6. Through the threaded connection between the lifting seat 42 and the lead screw 33, the actuator 4 can adjust its height by following the rotation of the lead screw 33. As an improvement to the above solution, the actuator 4 further includes a guide plate 43 and a cylinder 44. The guide plate 43 is mirror-mounted in the lifting port and has an L-shaped structure. The lifting plate 41 has positioning plates at both ends and the positioning plates are slidably connected to the guide plate 43. Through the slidable connection between the L-shaped guide plate 43 and the positioning plates, it can be ensured that when the screw 33 rotates, the lifting plate 41 drives the cylinder 44 to lift stably. By moving the sliding table 1 laterally on the horizontal track 2, and coordinating with the lifting and lowering adjustment of the actuator, the ammonia unloading emergency stop device can adapt to ammonia tank trucks of different positions and models. Under the action of the remote pressing of the emergency stop button 6 of the ammonia unloading emergency stop device, not only is the risk of direct harm to the operator from ammonia water eliminated, but the accident response time is also shortened, and the amount of ammonia water leakage is effectively controlled.

[0015] To ensure that the ammonia unloading emergency stop device can effectively and stably contact and press the emergency stop button 6, this implementation plan provides the following design: The pressing assembly 5 includes a pressing cylinder 51, a buffer rod 52, a buffer head 53, and a spring 54. The pressing cylinder 51 is located at the end of the piston rod of the cylinder 44. The buffer rod 52 is located inside the pressing cylinder 51. The buffer rod 52 engages and slides with the pressing cylinder 51. One end of the buffer rod 52 is provided with a buffer head 53. The end of the buffer head 53 facing away from the buffer head 53 is provided with a spring 54. The spring 54 is located inside the pressing cylinder 51. Through the spring 54 provided inside the pressing cylinder 51, in conjunction with the engagement and sliding of the buffer rod 52 and the pressing cylinder 51, the pressing assembly 5 is buffered when the piston rod of the cylinder 44 drives the pressing assembly 5 to move the buffer head 53 to contact the emergency stop button 6, so as to avoid excessive rigid impact force and damage to the vehicle's emergency stop button 6. When the ammonia unloading emergency stop device is in use, a solenoid valve is installed on the air passage of cylinder 44. The solenoid valve controls the air intake and exhaust of cylinder 44. The solenoid valve is controlled by a control button, which is located away from the core area of ​​the unloading operation and is installed in a safety monitoring area outside the ammonia unloading warning area. The control button, solenoid valve and plant instrument air source and power supply are connected to form a complete remote pneumatic control system.

[0016] When using: First, the horizontal track 2 is installed in the parking area of ​​the ammonia tanker. At this time, the movable slide 1 located above the horizontal track 2 is adjusted horizontally by the movable wheel 11 in contact with the horizontal track 2. Then, according to the model of the ammonia tanker and the height of the emergency stop button 6, the handwheel 34 in the lifting mechanism 3 is rotated. When the screw 33 rotates, the lifting seat 42 threadedly connected to the screw 33 drives the lifting plate 41 and the cylinder 44 to move vertically, so that the pressing component 5 is aligned with the emergency stop button 6, thereby making the application range of the ammonia unloading emergency stop device wider. During use: In the event of an ammonia leak, operators outside the ammonia unloading warning zone can control cylinder 44 via control buttons and solenoid valves to activate pressing component 5 and emergency stop button 6, thereby stopping the ammonia unloading. This ammonia unloading emergency stop device achieves "human-machine isolation," eliminating the need for operators to enter the danger zone during a leak and fundamentally preventing direct harm from ammonia to operators. This aligns with the highest standards of safe production. Compared to personnel wearing protective gear before entering the site, this ammonia unloading emergency stop device, controlled by a button, can complete the emergency braking action within 1-2 seconds, significantly shortening the accident response time and effectively controlling the leakage. Furthermore, the device utilizes mature and standard industrial components such as tracks, cylinder 44, and solenoid valves, resulting in low manufacturing, installation, and maintenance costs, high reliability, and suitability for large-scale promotion and use in industrial enterprises. When the pressing component 5 contacts the emergency stop button 6, the buffer rod 52, which is engaged and slidable inside the pressing cylinder 51, is buffered by the spring 54. This buffering action protects the emergency stop button 6 from damage caused by a hard impact.

Claims

1. An emergency stop device for unloading ammonia water, characterized in that: The system includes a movable slide (1), a horizontal track (2) below the movable slide (1), multiple movable wheels (11) at the bottom of the movable slide (1), a top platform (13) at the top of the movable slide (1), a support frame (14) on the top surface of the top platform (13), a mounting plate (15) in the middle of the movable slide (1), a lifting mechanism (3) above the mounting plate (15), an execution mechanism (4) in the middle of the lifting mechanism (3), and a pressing component (5) at the end of the execution mechanism (4). The lifting mechanism (3) includes a mounting base (31), a movable base (32), a lead screw (33), and a handwheel (34). The mounting base (31) is located on the top side of the upright frame (14), the movable base (32) is located on the top surface of the mounting plate (15), the mounting base (31) is provided through the middle of the mounting base (31), the bottom of the lead screw (33) is engaged with the movable base (32) and rotates, the top of the lead screw (33) is provided with a handwheel (34), and the actuator (4) is located in the middle of the lead screw (33).

2. The ammonia unloading emergency stop device according to claim 1, characterized in that: The bottom center of the movable wheel (11) is provided with a self-locking universal wheel (12), and the top platform (13) is provided with a lifting port in the middle.

3. The ammonia unloading emergency stop device according to claim 1, characterized in that: The actuator (4) includes a lifting plate (41) and a lifting seat (42). The lifting plate (41) has a lifting seat (42) on its side. The lifting seat (42) is threadedly connected to the lead screw (33). A cylinder (44) is provided on the side of the lifting plate (41) away from the lifting seat (42).

4. The ammonia unloading emergency stop device according to claim 1, characterized in that: The actuator (4) also includes a guide plate (43) and a cylinder (44). The guide plate (43) is mirror-mounted in the lifting port. The guide plate (43) has an L-shaped structure. The lifting plate (41) has positioning plates at both ends. The positioning plates are slidably connected to the guide plate (43).

5. The ammonia unloading emergency stop device according to claim 4, characterized in that: The pressing assembly (5) includes a pressing cylinder (51), a buffer rod (52), a buffer head (53), and a spring (54). The pressing cylinder (51) is located at the end of the cylinder piston rod. The pressing cylinder (51) is equipped with a buffer rod (52). The buffer rod (52) engages and slides with the pressing cylinder (51). One end of the buffer rod (52) is equipped with a buffer head (53). The end of the buffer head (53) away from the buffer head (53) is equipped with a spring (54). The spring (54) is located inside the pressing cylinder (51).

Images