A waste gas collecting device for a chemical reaction kettle

Abstract

The utility model relates to waste gas treatment technical field, specifically disclose a kind of waste gas collecting device for chemical reaction kettle, comprising: gas-collecting hood;Movable ring, fixed pipe periphery rotation installation has movable ring, and drive piece is installed on fixed pipe;Inner rotating ring, fixed pipe rotation installation has inner rotating ring, and several ear plates are equipped on the inner rotating ring, and the other end of the ear plate is elastically articulated with cleaning plate, and the cleaning plate always exists the trend of rotating towards cover body.After collecting waste gas once in gas-collecting hood, take down gas-collecting hood, make inner rotating ring rotate, so that cleaning plate cleans the inner wall of cover body, and the residue on the inner wall of cover body is cleaned down, in this way, on the one hand, effectively avoid the partial blockage in cover body interior to thereby influence waste gas collection efficiency, on the other hand, after collecting waste gas once each time, can clean the inner wall of cover body, thereby effectively avoid residue falling into reaction kettle to influence chemical reaction to cause side reaction.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a waste gas collection device for chemical reaction vessels. Background Technology

[0002] In the chemical, pharmaceutical, and other related industrial sectors, reaction vessels are the core equipment for conducting chemical reactions. The reaction process often generates complex waste gases, which may contain unreacted raw materials, intermediate products, volatile organic compounds (VOCs), vapors, aerogels, and solid particles, among other harmful substances. If these waste gases are discharged directly into the atmosphere without treatment, it will not only cause environmental pollution but may also pose a threat to human health.

[0003] Currently, collecting and treating waste gas from reactors is a common environmental protection measure. One common method is to capture the waste gas using a gas collection hood and then introduce it into the waste gas treatment system. However, in actual operation, waste gas often contains a large amount of vapor, easily condensable components, and suspended particulate matter. During the suction process, these substances easily come into contact with the inner wall of the gas collection hood. As operating time accumulates, condensates and particulate matter in the waste gas gradually adhere to the inner wall of the hood, forming a residue layer. The continuous accumulation of residue not only reduces the effective ventilation cross-section of the gas collection hood but may also lead to local blockages, significantly reducing the waste gas collection efficiency and affecting the normal operation of the system.

[0004] Furthermore, when multiple reactors alternately use the same gas collection system, when the gas collection hood is switched from one reactor to another for waste gas collection, the newly generated waste gas impacts the inner wall of the hood at a certain flow rate. This impact may cause residues originally attached to the inner wall to detach and fall back into the operating reactor with the airflow. These foreign impurities may interfere with the progress of the chemical reaction inside the reactor, affecting product purity and yield, and even triggering unnecessary side reactions, causing product quality problems and uncontrollable production processes.

[0005] Therefore, the existing gas collection hoods have two major drawbacks during use: first, the accumulation of deposits on the inner wall leads to a decrease in collection efficiency and system blockage; second, there is a risk of residual material falling off and contaminating the reaction system when switching exhaust gas sources. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of the existing technology by providing a waste gas collection device for chemical reactors, so as to solve the technical problems of the collection efficiency being affected by the accumulation of waste gas residue on the inner wall of the gas collection hood, and the residue falling off and contaminating the reaction system when switching waste gas sources.

[0007] The objective of this utility model can be achieved through the following technical solutions: A waste gas collection device for a chemical reaction vessel includes a universal suction arm, and the device further includes: A gas collection hood, comprising a hood body and a fixing tube, wherein the fixing tube is connected to a universal suction arm and the hood body is mounted on the fixing tube; A movable ring is rotatably mounted around the fixed tube, and a driving component is mounted on the fixed tube to drive the movable ring to rotate. An inner rotating ring is rotatably installed inside the fixed tube. The inner rotating ring is provided with several ear plates. A cleaning plate is elastically hinged to the other end of the ear plates. The cleaning plate always tends to rotate toward the cover. The inner rotating ring is made of magnetic material, and the movable ring is equipped with electromagnetic material.

[0008] As a preferred embodiment of the above technical solution, a fixing ring is fixed around the fixing tube, and several retractable rods are hinged to the fixing ring. The retractable rods are fixed to the outer surface of the cover. Several mounting plates are provided around the fixing ring, and telescopic components are provided on the mounting plates. Tension rings are provided at the output ends of the telescopic components. A hinge plate is hinged between the tension rings and the several retractable rods. The cover is made of elastic material.

[0009] As a preferred embodiment of the above technical solution, the other end of the retractable rod is hinged to a vertical rod, which is fixed to the surface of the cover and remains vertical. Several vertical rods make the port of the cover tubular.

[0010] As a preferred embodiment of the above technical solution, the movable ring is provided with several support rods on its periphery, and the other end of each support rod is connected to an installation ring. The installation ring has an annular groove, and a horizontal guide cylinder is slidably installed in the groove. A vertical guide cylinder is slidably installed at the bottom of the horizontal guide cylinder. A guide plate is provided on the vertical rod, and the guide plate is fitted inside the vertical guide cylinder.

[0011] As a preferred embodiment of the above technical solution, the outer side of the mounting ring is provided with several fixing plates, the fixing plates are provided with elastic telescopic plates, and the bottom of the elastic telescopic plates is equipped with a rolling wheel, which elastically abuts against the outer surface of the vertical rod or the cover.

[0012] As a preferred embodiment of the above technical solution, the outer side of the vertical rod is arc-shaped.

[0013] The beneficial effects of this utility model are as follows: 1. In this utility model, after the gas collecting hood has collected all the waste gas, the gas collecting hood is removed, and the inner rotating ring is rotated so that the cleaning plate cleans the inner wall of the hood and removes the residue on the inner wall of the hood. This effectively avoids local blockage inside the hood, which would affect the waste gas collection efficiency. On the other hand, the inner wall of the hood can be cleaned after each waste gas collection, so that the inner wall of the hood remains clean during the next waste gas collection, thereby effectively preventing residue from falling into the reaction vessel and affecting the chemical reaction, which could lead to side reactions. 2. In this utility model, by synchronously extending and retracting several telescopic components, the tension ring and several hinge plates can drive several retraction rods to extend and retract. Since the cover is made of elastic material, the diameter of the cover can be adjusted, so that the gas collecting cover can adapt to reactors of different diameters, improving its practicality. At the same time, when cleaning the inner wall of the cover, the cover can be retracted. When retracting, the residue on the inner wall of the cover is more easily separated from the cover when the cover extends and retracts. Combined with the cleaning plate, the cleaning efficiency of the residue can be improved, thereby improving the cleaning effect. 3. In this utility model, when the gas collection hood needs to collect waste gas, the hood is placed on the gas outlet pipe of the reactor, and then the moving ring is rotated by the driving component, which in turn rotates the mounting ring. This causes several rolling wheels to roll along the vertical edge of the hood, so that the vertical edge of the hood is always in close contact with the gas outlet pipe, further preventing waste gas from escaping. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the external structure of the gas collection hood; Figure 3 This is a schematic diagram of the cross-sectional structure of the gas collection hood; Figure 4 This is a schematic diagram of the gas collection hood from another perspective. Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 6 for Figure 4 Enlarged structural diagram at point B.

[0015] In the picture: 1. Universal suction arm; 2. Air collection hood; 21. Hood body; 22. Fixing tube; 3. Fixing ring; 31. Retractable rod; 32. Vertical rod; 321. Guide plate; 33. Mounting plate; 34. Telescopic component; 35. Tension ring; 36. Hinge plate; 4. Movable ring; 41. Support rod; 42. Mounting ring; 421. Groove; 43. Fixing plate; 44. Elastic telescopic plate; 45. Rolling wheel; 5. Driving component; 6. Inner rotating ring; 61. Ear plate; 62. Cleaning plate; 7. Vertical guide tube; 8. Horizontal guide tube. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-6 As shown, a waste gas collection device for a chemical reactor includes a universal suction arm 1, and the device further includes: The air collection hood 2 includes a hood body 21 and a fixing pipe 22. The fixing pipe 22 is connected to the universal suction arm 1, and the hood body 21 is installed on the fixing pipe 22. The movable ring 4 is rotatably mounted on the periphery of the fixed tube 22, and the driving component 5 is mounted on the fixed tube 22. The driving component 5 drives the movable ring 4 to rotate. The inner rotating ring 6 is rotatably installed inside the fixed tube 22. The inner rotating ring 6 is provided with several ear plates 61. The other end of the ear plate 61 is elastically hinged to a cleaning plate 62. The cleaning plate 62 always tends to rotate toward the cover 21. The inner rotating ring 6 is made of magnetic material, and the movable ring 4 is made of electromagnetic material.

[0018] In practical application, after the gas collection hood 2 has collected all the waste gas, it is removed by the universal suction arm 1. Then, the electromagnetic material on the movable ring 4 is energized, causing the inner rotating ring 6 to attract the movable ring 4. At this time, the driving component 5 makes the movable ring 4 rotate, so that the inner rotating ring 6 rotates with the movable ring 4, thereby cleaning the inner wall of the hood 21 by the cleaning plate 62 and removing the residue on the inner wall of the hood 21. This effectively avoids local blockage inside the hood 21, which would affect the waste gas collection efficiency. On the other hand, the inner wall of the hood 21 can be cleaned after each waste gas collection, so that the inner wall of the hood 21 remains clean during the next waste gas collection, thus effectively preventing residue from falling into the reactor and affecting the chemical reaction, which could lead to side reactions.

[0019] Furthermore, a fixing ring 3 is fixed around the fixing tube 22, and several retractable rods 31 are hinged on the fixing ring 3. The retractable rods 31 are fixed on the outer surface of the cover 21. Several mounting plates 33 are provided around the fixing ring 3. Telescopic components 34 are provided on the mounting plates 33. Tension rings 35 are provided at the output ends of the telescopic components 34. A hinge plate 36 is hinged between the tension rings 35 and the several retractable rods 31. The cover 21 is made of elastic material.

[0020] In practical application, the synchronous extension and retraction of several telescopic components 34 in this embodiment allows the tension ring 35 and several hinge plates 36 to drive several retraction rods 31 to extend and retract. Since the cover 21 is made of elastic material, the diameter of the cover 21 can be adjusted, thus enabling the gas collecting cover 2 to adapt to reactors of different diameters and improving its practicality. At the same time, when cleaning the inner wall of the cover 21, the cover 21 can be retracted. When retracting, the residue on the inner wall of the cover 21 is more easily separated from the cover 21 during the extension and retraction of the cover 21. Combined with the cleaning plate 62, the cleaning efficiency of the residue can be improved, thereby improving the cleaning effect.

[0021] Furthermore, the other end of the retractable rod 31 is hinged to a vertical rod 32, which is fixed to the surface of the cover 21 and remains vertical. Several vertical rods 32 make the port of the cover 21 tubular.

[0022] The movable ring 4 is surrounded by several support rods 41. The other end of the support rod 41 is connected to the mounting ring 42. The mounting ring 42 has an annular groove 421. A horizontal guide cylinder 8 is slidably installed in the groove 421. A vertical guide cylinder 7 is slidably installed at the bottom of the horizontal guide cylinder 8. A guide plate 321 is provided on the vertical rod 32. The guide plate 321 is fitted inside the vertical guide cylinder 7.

[0023] In practical application, when the retracting rod 31 extends and retracts, the guide plate 321, the vertical guide cylinder 7, and the horizontal guide cylinder 8 ensure that the vertical rod 32 remains vertical. This makes the port of the cover 21 tubular, which facilitates fitting the cover 21 onto the end of the gas outlet pipe of the reactor. This allows the cover 21 to adapt to gas outlet pipes of different diameters while ensuring the sealing of the cover 21 after installation, effectively preventing the escape of exhaust gas.

[0024] Furthermore, a number of fixing plates 43 are provided on the outer side of the mounting ring 42, and elastic telescopic plates 44 are provided on the fixing plates 43. A rolling wheel 45 is installed at the bottom of the elastic telescopic plate 44, and the rolling wheel 45 elastically abuts against the outer surface of the vertical rod 32 or the cover 21.

[0025] The outer side of the vertical rod 32 is arc-shaped.

[0026] In practical application, when the gas collection hood 2 needs to collect waste gas, the hood 21 is placed on the gas outlet pipe of the reactor. Then, the driving component 5 rotates the movable ring 4, causing the mounting ring 42 to rotate. This causes several rolling wheels 45 to roll along the vertical edge of the hood 21, ensuring that the vertical edge of the hood 21 is always in close contact with the gas outlet pipe, further preventing waste gas from escaping. In addition, since the vertical rod 32 protrudes outward relative to the hood 21, when the rolling wheel 45 moves to the vertical rod 32, the rolling wheel 45 has an outward and then inward contraction action. This causes the rolling wheel 45 to impact the hood 21 and the gas outlet pipe, causing the hood 21 to be in a state of intermittent vibration. This effectively prevents impurities in the waste gas from adhering to the inner wall of the hood 21, further preventing local blockage inside the hood 21 that would affect the waste gas collection efficiency.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A waste gas collection device for a chemical reaction vessel, comprising a universal suction arm (1), characterized in that, The device further includes: The gas collection hood (2) includes a hood body (21) and a fixing pipe (22). The fixing pipe (22) is connected to the universal suction arm (1), and the hood body (21) is installed on the fixing pipe (22). The movable ring (4) is rotatably mounted on the periphery of the fixed tube (22), and a driving component (5) is mounted on the fixed tube (22). The driving component (5) drives the movable ring (4) to rotate. Inner rotating ring (6), an inner rotating ring (6) is rotatably installed inside the fixed tube (22), and a number of ear plates (61) are provided on the inner rotating ring (6). A cleaning plate (62) is elastically hinged to the other end of the ear plate (61), and the cleaning plate (62) always tends to rotate toward the cover (21). The inner rotating ring (6) is made of magnetic material, and the movable ring (4) is provided with electromagnetic material.

2. The waste gas collection device for chemical reaction vessels according to claim 1, characterized in that, A fixing ring (3) is fixed around the fixing tube (22). Several retractable rods (31) are hinged on the fixing ring (3). The retractable rods (31) are fixed on the outer surface of the cover (21). Several mounting plates (33) are provided around the fixing ring (3). Telescopic components (34) are provided on the mounting plates (33). Tension rings (35) are provided at the output ends of the telescopic components (34). A hinge plate (36) is hinged between the tension ring (35) and the several retractable rods (31). The cover (21) is made of elastic material.

3. The waste gas collection device for chemical reaction vessels according to claim 2, characterized in that, The other end of the retractable rod (31) is hinged to a vertical rod (32), which is fixed to the surface of the cover (21). The vertical rod (32) remains vertical, and the multiple vertical rods (32) make the port of the cover (21) tubular.

4. The waste gas collection device for chemical reaction vessels according to claim 3, characterized in that, The movable ring (4) is provided with several support rods (41) around its periphery. The other end of the support rod (41) is connected to an installation ring (42). The installation ring (42) has an annular groove (421). A horizontal guide cylinder (8) is slidably installed in the groove (421). A vertical guide cylinder (7) is slidably installed at the bottom of the horizontal guide cylinder (8). A guide plate (321) is provided on the vertical rod (32). The guide plate (321) is fitted inside the vertical guide cylinder (7).

5. The waste gas collection device for chemical reaction vessels according to claim 4, characterized in that, The mounting ring (42) is provided with several fixing plates (43) on the outside. The fixing plates (43) are provided with elastic telescopic plates (44). The bottom of the elastic telescopic plates (44) is equipped with a rolling wheel (45). The rolling wheel (45) elastically abuts against the outer surface of the vertical rod (32) or the cover (21).

6. The waste gas collection device for chemical reaction vessels according to claim 5, characterized in that, The outer side of the vertical rod (32) is arc-shaped.

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