Oxidation treatment equipment for cobalt-containing material in polyol production process
By designing the oxidation and disposal equipment for cobalt-containing materials in the polyol production process, and using the combination of treatment components and adsorption components, the lack of ethylene oxide and nitrogen recovery in the polyol production process is solved, efficient condensation of ethylene oxide and automatic purification of harmful gases is achieved, and production safety and efficiency are improved.
Patent Information
- Application Number
- CN202510356900.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2025-06-20
AI Technical Summary
There is a lack of an effective recycling system in the polyol production process to collect and recover ethylene oxide and nitrogen, resulting in direct discharge of these gases into the environment, posing safety risks.
An oxidation treatment device for cobalt-containing materials in the polyol production process is designed, including processing components and adsorption components. The treatment assembly achieves efficient condensation of ethylene oxide and gas-liquid separation through a combination of a trumpet-shaped treatment tube and a spiral condensation tube. The adsorption assembly automatically adsorbs and purifies remaining harmful gases through a steam-driven mechanical drive system.
Efficient recycling and treatment of ethylene oxide and nitrogen reduces environmental pollution, improves production safety and efficiency, and achieves efficient gas-liquid separation and precise purification of harmful gases.
Smart Images
Figure CN120169285A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of polyol production processes, and particularly to an oxidation disposal device for cobalt-containing materials in a polyol production process. Background Art
[0002] In the polyol production process, the oxidation disposal device for cobalt-containing materials is not a specific device dedicated to polyol production, but a general device or process link related to cobalt material treatment. However, due to the possible involvement of various chemical reactions and material treatment steps in the polyol production process, including catalysts or reactants that may contain cobalt elements, the equipment for treating these cobalt-containing materials may involve some general chemical engineering equipment.
[0003] After the reaction is completed, traditional equipment usually lacks an effective recovery system to collect and recycle ethylene oxide and nitrogen, resulting in the direct discharge of these valuable or potentially dangerous gases into the environment. Ethylene oxide is a flammable and explosive gas, and if it accumulates to a certain concentration inside the equipment and encounters a fire source or high temperature, it may trigger an explosion. Summary of the Invention
[0004] In view of this, the purpose of the present invention is to provide an oxidation disposal device for cobalt-containing materials in a polyol production process to solve the problem of the lack of an effective recovery system to collect and recycle ethylene oxide and nitrogen.
[0005] Based on the above purpose, the present invention provides an oxidation disposal device for cobalt-containing materials in a polyol production process, including a fixed box, a reaction box is arranged inside the fixed box, a heating pipe is arranged inside the reaction box, a feed inlet is arranged at one end of the reaction box, and an air outlet is opened at the top of the reaction box; A processing component, the processing component is fixedly installed at the upper end of the fixed box, and the processing component is used to process the excess gas after the reaction; An adsorption component, the adsorption component is arranged on one side of the processing component, and the adsorption component is used to adsorb the gas still present after condensation inside the processing component.
[0006] Preferably, the processing component includes a gas processing tank fixedly installed at the upper end of the fixed box, an air inlet net is arranged at the bottom of the processing box, the air outlet is communicated with the air inlet net, a sealing door is further arranged on one side above the processing box, a processing pipe is fixedly installed in the middle of the top end of the processing box, the processing pipe is arranged in a horn shape with a diameter gradually expanding from bottom to top, a connecting pipe is fixedly connected to the top end of the processing pipe, the connecting pipe is arranged in a U shape, and the other end of the connecting pipe is fixedly connected to a separation pipe.
[0007] Preferably, a spiral condenser tube is arranged inside the separation tube. One end of the condenser tube is provided with a guiding hopper which is attached to the inner top of the separation tube, and a liquid outlet tube is arranged at the bottom end of the separation tube.
[0008] Preferably, a gap is left between the bottom of the condenser tube and the inner bottom of the separation tube.
[0009] Preferably, the adsorption assembly includes an adsorption box fixedly installed between the treatment tube and the separation tube, and a connecting tube fixedly installed on one side of the bottom of the separation tube. An adsorption tube is arranged on one side of the connecting tube and is communicated with the inside of the separation tube. A spraying tube is arranged on the other side of the connecting tube, and a purification box is fixedly connected to the other side of the spraying tube.
[0010] Preferably, a fixing rod is fixedly installed at the inner top of the adsorption box. A telescopic sleeve is slidably installed at the bottom of the fixing rod. A first return spring is sleeved between the telescopic sleeve and the fixing rod. The bottom end of the telescopic sleeve is fixedly connected with a moving rod, and the bottom end of the moving rod is fixedly connected with a piston which is slidably arranged inside the connecting tube.
[0011] Preferably, a sliding groove is formed on one side of the treatment tube, and a moving plate is further slidably installed inside the treatment tube. A connecting rod is fixedly installed on one side of the moving plate, and the connecting rod is arranged in an L shape. Preferably, the side of the connecting rod close to the moving plate is slidably installed on the sliding groove on one side of the treatment tube, and multi-stage telescopic plates are arranged on both the upper and lower sides of the sliding groove. The telescopic ends of the two multi-stage telescopic plates are respectively fixedly connected with the upper and lower ends of the connecting rod.
[0012] Preferably, a number of teeth are further arranged on the side of the connecting rod away from the moving plate. A first rotating rod and a second rotating rod are respectively rotatably installed on one side inside the adsorption box. A rotating gear and a first meshing gear are coaxially sleeved above the second rotating rod. A second meshing gear and an incomplete gear are coaxially sleeved above the second rotating rod. The rotating gear meshes with the number of teeth. The first meshing gear meshes with the second meshing gear. A number of meshing tooth grooves are formed on one side of the telescopic sleeve, and the number of meshing tooth grooves mesh with the incomplete gear.
[0013] Preferably, the adsorption tube and the spraying tube are arranged in opposite directions.
[0014] Advantages of the present invention: 1. The cobalt-containing material oxidation disposal equipment in this polyol production process is equipped with a processing component. The horn-shaped processing tube design effectively promotes the initial dispersion and deceleration of gas, providing favorable conditions for the subsequent condensation process and enhancing the condensation efficiency. Secondly, through the combined application of the U-shaped connecting tube and the spiral condensation tube, not only is the contact time between the gas and the condensation tube extended, but the contact area is also increased, enabling easily condensable components such as ethylene oxide to be more fully condensed and liquefied, thus achieving efficient gas-liquid separation. In addition, the setting of the guiding hopper skillfully guides the flow direction of the condensed liquid, avoiding liquid backflow or accumulation, ensuring the smooth collection and discharge of the condensate. At the same time, the gap design between the bottom of the condensation tube and the inner bottom of the separation tube ensures the smooth flow of the uncondensed gas and realizes the complete separation between gas and liquid, improving the overall treatment effect.
[0015] 2. The cobalt-containing material oxidation disposal equipment in this polyol production process is equipped with an adsorption component. During the heating process, the steam rising force serves as the driving force, and the moving plate can be pushed to rise without additional energy, thereby triggering the entire adsorption mechanism. The rising of the moving plate not only maintains the sealing inside the processing tube but also drives the telescopic sleeve and the piston to move inside the connecting tube through the connecting rod and the gear transmission system, achieving the precise suction of harmful gases at the bottom of the separation tube. This automated operation not only improves production efficiency but also significantly reduces the need for manual intervention, enhancing the safety and reliability of the operation. In addition, the opposite setting of the adsorption tube and the ejection tube optimizes the gas flow path, reduces gas mixing and resistance, and improves the processing efficiency. At the same time, the application of the multi-stage telescopic plate ensures the sealing of the processing tube during movement, preventing gas leakage and guaranteeing the continuity and effectiveness of the adsorption process. More importantly, through a series of precise gear transmissions, this adsorption component realizes the precise control of the adsorption and purification processes. The interaction between the incomplete gear and the meshing tooth grooves on the telescopic sleeve enables the adsorption process to be carried out as needed and automatically reset after completion, preparing for the next adsorption process. This intelligent control not only improves the processing efficiency but also ensures the stability and consistency of the processing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.
[0017] Figure 1 It is a three-dimensional structure schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the reaction tank of the present invention; Figure 3 Schematic diagram of the three-dimensional structure of the reaction chamber of the present invention; Figure 4 Schematic diagram of the structure of the processing component of the present invention; Figure 5 For the present invention Figure 4 Enlarged structure diagram at position A in Figure 6 Schematic diagram of the structure of the adsorption component of the present invention; Figure 7 Schematic diagram of the structures of the adsorption component and the processing component of the present invention; Figure 8 For the present invention Figure 7 Enlarged structure diagram at position B in Figure 9 Partial structure diagram of the adsorption component of the present invention; Figure 10 Schematic diagram of the structure of the connecting pipe of the present invention.
[0018] The markings in the figure are: 1. Fixed box; 2. Reaction box; 3. Heating pipe; 4. Feed inlet; 5. Gas outlet; 6. Gas treatment tank; 7. Sealed door; 8. Processing pipe; 9. Connecting pipe; 10. Separation pipe; 11. Condensing pipe; 12. Guide hopper; 13. Liquid outlet pipe; 14. Adsorption box; 15. Moving plate; 16. Connecting rod; 17. First rotating rod; 18. Rotating gear; 19. First meshing gear; 20. Second rotating rod; 21. Second meshing gear; 22. Incomplete gear; 23. Fixed rod; 24. Telescopic sleeve; 25. First return spring; 26. Meshing tooth groove; 27. Connecting pipe; 28. Adsorption pipe; 29. Spraying pipe; 30. Moving rod; 31. Piston; 32. Purification box; 33. Telescopic plate. Detailed implementation manners
[0019] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments.
[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those of ordinary skill in the field to which the present invention pertains. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0021] As Figures 1 to 10 shown, the oxidation treatment equipment for cobalt-containing materials in the polyol production process includes a fixed box 1, a reaction box 2 is arranged inside the fixed box 1, a heating pipe 3 is arranged inside the reaction box 2, a feed inlet 4 is arranged at one end of the reaction box 2, and an air outlet 5 is opened at the top of the reaction box 2; a processing component, the processing component is fixedly installed at the upper end of the fixed box 1, and the processing component is used to process the excess gas after the reaction; an adsorption component, the adsorption component is arranged on one side of the processing component, and the adsorption component is used to adsorb the gas still present after condensation inside the processing component; In the polyol production process, the cobalt-containing material undergoes an oxidation reaction through the heating pipe 3 inside the reaction box 2. To ensure the safety of the reaction, nitrogen is first filled into the reaction box 2. After the reaction is completed, the generated gas (mainly including ethylene oxide and the remaining nitrogen) enters the processing component through the air outlet 5. In the processing component, the gas is first subjected to condensation treatment, and most of the ethylene oxide is condensed and recovered. Subsequently, the gas remaining after condensation enters the adsorption component, and the residual ethylene oxide and other harmful gases are further adsorbed through the adsorption material to ensure the cleanliness and safety of the discharged gas. Throughout the process, each component works together to achieve the efficient recovery and safe discharge of ethylene oxide.
[0022] As Figure 4 、 Figure 7As shown in the figure, the processing component includes a gas processing tank 6 fixedly installed at the upper end of a fixed box 1. An air inlet net is provided at the bottom of the processing box. The air outlet 5 is communicated with the air inlet net. A sealing door 7 is also provided on one side above the processing box. In the middle of the top end of the processing box, a processing pipe 8 is fixedly installed. The processing pipe 8 is arranged in a horn shape with a diameter gradually increasing from bottom to top. The top end of the processing pipe 8 is fixedly connected to a communicating pipe 9. The communicating pipe 9 is arranged in a U shape. The other end of the communicating pipe 9 is fixedly connected to a separation pipe 10. A spiral condensing pipe 11 is arranged inside the separation pipe 10. One end of the condensing pipe 11 is provided with a guiding hopper 12 which is attached to the inner top of the separation pipe 10. A liquid outlet pipe 13 is provided at the bottom end of the separation pipe 10. A gap is left between the bottom of the condensing pipe 11 and the inner bottom of the separation pipe 10. After the reaction is completed, the mixed gas containing ethylene oxide and nitrogen enters the gas processing tank 6 of the processing component through the air outlet 5. The gas first enters the processing box through the air inlet net and flows upward to the processing pipe 8. In the processing pipe 8, the gas decelerates and is preliminarily dispersed due to the gradually expanding pipe diameter. Subsequently, the gas enters the communicating pipe 9 and flows along a U-shaped path. During this process, some easily condensable components such as ethylene oxide in the gas start to cool and condense. When the gas enters the separation pipe 10, it passes through the spiral condensing pipe 11. Due to the cooling effect of the condensing pipe 11, the ethylene oxide and other components in the gas are further condensed into liquid. The condensed liquid flows downward along the inner wall of the condensing pipe 11 under the action of gravity and is finally collected at the bottom of the separation pipe 10 through the guiding hopper 12. At the same time, the gas that is not completely condensed continues to flow upward and passes through the gap between the bottom of the condensing pipe 11 and the inner bottom of the separation pipe 10 to achieve complete gas-liquid separation. Finally, the condensed ethylene oxide and other liquids are discharged and collected through the liquid outlet pipe 13.
[0023] As Figures 5 to 10As shown in the figure, the adsorption assembly includes an adsorption box 14 fixedly installed between the treatment pipe 8 and the separation pipe 10, and a connecting pipe 27 fixedly installed on one side of the bottom of the separation pipe 10. An adsorption pipe 28 is arranged on one side of the connecting pipe 27 and is connected to the inside of the separation pipe 10. A spray pipe 29 is arranged on the other side of the connecting pipe 27. The other side of the spray pipe 29 is fixedly connected to a purification box 32. A fixed rod 23 is fixedly installed at the top end inside the adsorption box 14. A telescopic sleeve 24 is slidably installed at the bottom of the fixed rod 23. A first return spring 25 is sleeved between the telescopic sleeve 24 and the fixed rod 23. The bottom end of the telescopic sleeve 24 is fixedly connected to a moving rod 30. The bottom end of the moving rod 30 is fixedly connected to a piston 31. The piston 31 is slidably arranged inside the connecting pipe 27. A chute is opened on one side of the treatment pipe 8. A moving plate 15 is also slidably installed inside the treatment pipe 8. A connecting rod 16 is fixedly installed on one side of the moving plate 15. The connecting rod 16 is arranged in an L shape. The side of the connecting rod 16 close to the moving plate 15 is slidably installed on the chute on one side of the treatment pipe 8. Multistage telescopic plates 33 are arranged on both the upper and lower sides of the chute. The telescopic ends of the two multistage telescopic plates 33 are respectively fixedly connected to the upper and lower ends of the connecting rod 16. A number of teeth are also arranged on the side of the connecting rod 16 away from the moving plate 15. A first rotating rod 17 and a second rotating rod 20 are respectively rotatably installed on one side inside the adsorption box 14. A rotating gear 18 and a first meshing gear 19 are coaxially sleeved above the second rotating rod 20. A second meshing gear 21 and an incomplete gear 22 are coaxially sleeved above the second rotating rod 20. The rotating gear 18 meshes with a number of teeth. The first meshing gear 19 meshes with the second meshing gear 21. A number of meshing tooth grooves 26 are opened on one side of the telescopic sleeve 24. The number of meshing tooth grooves 26 meshes with the incomplete gear 22. The adsorption pipe 28 and the spray pipe 29 are arranged in opposite directions; During the heating process, the force generated by the rising steam pushes the moving plate 15 inside the processing tube 8 upward. During the upward movement of the moving plate 15, the multi-stage telescopic plates 33 on both sides of the chute are driven to move synchronously through the connecting rod 16, maintaining the sealed state inside the processing tube 8. At the same time, the upward movement of the connecting rod 16 drives the rotation of the rotating gear 18, and then through a series of gear transmissions (including the first meshing gear 19, the second meshing gear 21, and the incomplete gear 22), the telescopic sleeve 24 is driven to slide on the fixed rod 23. The movement of the telescopic sleeve 24 drives the movement of the moving rod 30 and the piston 31 inside the connecting tube 27, so as to suck the harmful gas at the bottom of the separation tube 10 through the adsorption tube 28. When the incomplete gear 22 rotates to disengage from the telescopic sleeve 24, the first return spring 25 pushes the telescopic sleeve 24 to reset downward, and then pushes the piston 31 to spray the adsorbed gas into the purification tank 32 through the ejection tube 29 for further treatment. As the moving plate 15 continues to rise, the air pressure inside the processing tube 8 gradually decreases. When the air pressure decreases to a certain extent, the moving plate 15 loses the upward lifting force and begins to fall. The falling of the moving plate 15 drives the gear transmission system to reset in the reverse direction through the connecting rod 16, preparing for the next adsorption process. During the whole process, the adsorption component realizes the automatic adsorption and purification treatment of harmful gases through mechanical transmission, improving the production efficiency and safety.
[0024] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.
[0025] The present invention aims to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. An oxidation treatment device for cobalt-containing materials in a polyol production process, characterized in that: include: A fixed box (1), wherein a reaction box (2) is arranged inside the fixed box (1), a heating tube (3) is arranged inside the reaction box (2), a feed inlet (4) is arranged at one end of the reaction box (2), and an air outlet (5) is opened at the top of the reaction box (2); A processing component, the processing component is fixedly mounted on the upper end of the fixed box (1), and the processing component is used to process excess gas after the reaction; The adsorption component is arranged on one side of the processing component, and is used for adsorbing the gas that still exists after condensation inside the processing component.
2. The oxidation treatment equipment for cobalt-containing materials in the polyol production process according to claim 1, characterized in that: The processing assembly comprises a gas processing tank (6) fixedly mounted on the upper end of the fixed box (1); an air inlet net is arranged at the bottom of the processing box; the air outlet (5) is connected to the air inlet net; a sealing door (7) is also arranged on one side of the upper end of the processing box; a processing pipe (8) is fixedly mounted at the middle of the top end of the processing box; the processing pipe (8) is arranged in a trumpet shape with a diameter gradually increasing from bottom to top; a connecting pipe (9) is fixedly connected to the top end of the processing pipe (8); the connecting pipe (9) is arranged in a U shape; and a separation pipe (10) is fixedly connected to the other end of the connecting pipe (9).
3. The oxidation treatment equipment for cobalt-containing materials in the polyol production process according to claim 2, characterized in that: A spiral condenser tube (11) is arranged inside the separation tube (10); a guide bucket (12) is arranged at one end of the condenser tube (11) and is in contact with the top of the interior of the separation tube (10); and a liquid outlet tube (13) is arranged at the bottom end of the separation tube (10).
4. The oxidation treatment equipment for cobalt-containing materials in the polyol production process according to claim 3, characterized in that: A gap is left between the bottom of the condensation tube (11) and the inner bottom of the separation tube (10).
5. The oxidation treatment equipment for cobalt-containing materials in the polyol production process according to claim 4, characterized in that: The adsorption assembly comprises an adsorption box (14) fixedly installed between the processing tube (8) and the separation tube (10), and a connecting tube (27) fixedly installed on one side of the bottom of the separation tube (10), an adsorption tube (28) being arranged on one side of the connecting tube (27) and communicating with the interior of the separation tube (10), and an ejection tube (29) being arranged on the other side of the connecting tube (27), and a purification box (32) being fixedly connected to the other side of the ejection tube (29).
6. The oxidation treatment equipment for cobalt-containing materials in the polyol production process according to claim 5, characterized in that: A fixed rod (23) is fixedly installed at the top of the interior of the adsorption box (14); a telescopic sleeve (24) is slidably installed at the bottom of the fixed rod (23); a first return spring (25) is sleeved between the telescopic sleeve (24) and the fixed rod (23); a moving rod (30) is fixedly connected to the bottom end of the telescopic sleeve (24); a piston (31) is fixedly connected to the bottom end of the moving rod (30); and the piston (31) is slidably arranged inside the connecting pipe (27).
7. The oxidation treatment equipment for cobalt-containing materials in the polyol production process according to claim 6, characterized in that: A sliding groove is provided on one side of the processing tube (8), and a movable plate (15) is slidably mounted inside the processing tube (8). A connecting rod (16) is fixedly mounted on one side of the movable plate (15), and the connecting rod (16) is arranged in an L shape.
8. The oxidation treatment equipment for cobalt-containing materials in the polyol production process according to claim 7, characterized in that: The connecting rod (16) is slidably mounted on a slide groove on one side of the processing tube (8) on a side close to the movable plate (15), and multi-stage telescopic plates (33) are provided on both upper and lower sides of the slide groove, and the telescopic ends of the two multi-stage telescopic plates (33) are fixedly connected to the upper and lower ends of the connecting rod (16) respectively.
9. The oxidation treatment equipment for cobalt-containing materials in the polyol production process according to claim 8, characterized in that: A surface of the connecting rod (16) away from the movable plate (15) is also provided with a plurality of teeth. A first rotating rod (17) and a second rotating rod (20) are rotatably mounted on one side of the interior of the adsorption box (14). A rotating gear (18) and a first meshing gear (19) are coaxially sleeved above the second rotating rod (20). A second meshing gear (21) and an incomplete gear (22) are coaxially sleeved above the second rotating rod (20). The rotating gear (18) meshes with the plurality of teeth. The first meshing gear (19) meshes with the second meshing gear (21). A plurality of meshing tooth grooves (26) are provided on one side of the telescopic sleeve (24). The plurality of meshing tooth grooves (26) mesh with the incomplete gear (22).
10. The oxidation treatment equipment for cobalt-containing materials in the polyol production process according to claim 5, characterized in that: The adsorption tube (28) and the ejection tube (29) are arranged in opposite directions.