Safe feeding device for preparing m-cresol
By using an upper and lower cone hood structure driven by an electric push rod in the barrel, the problem of harmful gas leakage during the preparation of m-cresol is solved, and a safe input of solid raw materials is achieved to ensure that there is no pollution inside the reactor.
Patent Information
- Application Number
- CN202422358073.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-26
AI Technical Summary
During the preparation of m-cresol, the prior art cannot effectively avoid the leakage of harmful gases when solid raw materials are put into use, resulting in environmental pollution in the reactor.
The upper cone cover and the lower cone cover driven by the electric push rod are lifted and moved in the barrel. The gas is first discharged and then isolated from the reactor, and then solid raw materials are added and closed to ensure that the harmful gas does not leak.
It effectively avoids harmful gas leakage during the solid raw material input process, ensures the safety of the internal environment of the reactor, and avoids pollution.
Smart Images
Figure CN223144668U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reactor feeding, in particular to a safe feeding device for preparing m-cresol. Background Technique
[0002] m-Cresol, also known as m-methylphenol, is a colorless to light yellow transparent liquid, slightly soluble in water, miscible with ethanol, ether, sodium hydroxide aqueous solution, acetone, chloroform, etc. It is mainly used as a pesticide intermediate to produce insecticides such as sumithion, fenthion, baygon, and permethrin. It is also an intermediate for color films, resins, plasticizers, and fragrances, and can also be used as a disinfectant, fumigant, and photographic developer.
[0003] m-Cresol is placed in a reactor for production. During the production process, solid raw materials such as 5-methyl-2-cyclohexenone and platinum oxide need to be put into the reactor. However, there are many harmful gases during the reaction inside the reactor. Therefore, an open structure cannot be used to put solid raw materials to avoid the leakage of harmful gases. Therefore, we propose a safe feeding device for preparing m-cresol. Content of the Utility Model
[0004] The purpose of the utility model is to provide a safe feeding device for preparing m-cresol. By setting an upper conical cover and a lower conical cover driven by an electric push rod, they can be lifted and moved inside the feed cylinder. Before adding solid raw materials, the upper conical cover and the lower conical cover are first brought into contact to discharge gas. Then, the upper conical cover and the lower conical cover enter the feed cylinder and are isolated from the inside of the reactor. Then, solid raw materials can be added between them. Finally, the space between them and the outside is sealed, and the solid raw materials fall into the reactor, avoiding the leakage of harmful gases when adding raw materials, and solving the problems raised in the background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A safe feeding device for preparing m-cresol, including a feed cylinder and a reactor. The feed cylinder is placed above the reactor, and the bottom of the feed cylinder is communicated with the inside of the reactor through a feed port. A feed hopper is arranged above the side of the feed cylinder, and the lower part of the feed hopper is communicated with the inside of the upper part of the feed cylinder through a feed pipe. Second electric push rods are vertically installed on both sides of the surface of the feed cylinder. The extending ends of the second electric push rods penetrate into the inside of the feed cylinder, and the ends of the second electric push rods are fixed with an upper conical cover. The outer circle of the upper conical cover is in sealed and slidable contact with the inner wall of the feed cylinder. A first electric push rod is vertically installed at the middle position of the surface of the feed cylinder. The extending end of the first electric push rod penetrates into the inside of the feed cylinder and can slide through to the lower part of the upper conical cover, and the end of the first electric push rod is fixed with a lower conical cover. The outer circle of the lower conical cover is in sealed and slidable contact with the inner wall of the feed cylinder.
[0006] By adopting the above technical solution, the gas placed between the upper conical cover and the lower conical cover is discharged first, and the two are placed inside the barrel. After the upper conical cover rises to a certain height, solid raw materials are added to the inside of the barrel above the lower conical cover. Then the upper conical cover descends to isolate it from the outside, and then the lower conical cover enters the inside of the reaction kettle, and the solid raw materials are added to the reaction kettle.
[0007] Optionally, rubber rings are fixedly arranged around the outer circles of the upper conical cover and the lower conical cover. When the upper conical cover and the lower conical cover are placed inside the barrel, the rubber rings are in contact with the inner wall surface of the barrel.
[0008] By adopting the above technical solution, good sealing effects are achieved between the upper conical cover and the lower conical cover and the barrel.
[0009] Optionally, the upper conical cover and the lower conical cover have the same size. When the upper conical cover contacts the lower conical cover, they are in close contact with each other.
[0010] By adopting the above technical solution, it is ensured that when the two are in contact, all the gas between them can be discharged.
[0011] Optionally, when the upper conical cover is driven by the second electric push rod to be lowered to the lowest height, the outer circle at the bottom of the upper conical cover is flush with the bottom of the material port.
[0012] By adopting the above technical solution, it is avoided that the upper conical cover enters the inside of the reaction kettle, so that harmful gases leak above the upper conical cover.
[0013] Optionally, a through hole is provided at the middle position of the upper conical cover, and the first electric push rod penetrates through the upper conical cover through the through hole.
[0014] Optionally, a sealing ring is fixedly attached to the inner surface of the inner circle of the through hole, and the sealing ring is in contact with the outer surface of the extended end of the first electric push rod.
[0015] By adopting the above technical solution, when the extended end of the first electric push rod slides through the through hole, a good sealing effect is maintained.
[0016] Compared with the prior art, the beneficial effects of the technical solution of the present application are as follows:
[0017] 1. The technical solution of the present application can be lifted and lowered inside the barrel by arranging the upper conical cover and the lower conical cover driven by electric push rods. Before adding solid raw materials, the upper conical cover and the lower conical cover are made to contact each other to discharge the gas. Then the upper conical cover and the lower conical cover enter the barrel and are isolated from the inside of the reaction kettle. Then solid raw materials can be added between them. Finally, the space between them and the outside is sealed, and the solid raw materials fall into the reaction kettle, avoiding the leakage of harmful gases during the addition of raw materials.
[0018] 2. The technical solution of this application can improve the sealing effect between the upper conical cover and the lower conical cover and the barrel by fixedly surrounding rubber rings on the outer circles of both the upper conical cover and the lower conical cover, and a sealing ring that touches the outer surface of the first electric push rod is fixedly surrounded on the inner circle of the through hole, which can improve the sealing effect at the penetration of the first electric push rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] By reading the following detailed description of the non-restrictive embodiments with reference to the accompanying drawings, other features, objectives, and advantages of the present utility model will become more apparent:
[0020] Figure 1 It is a schematic diagram of the overall structure of the safety feeding device for m-cresol preparation of the present utility model;
[0021] Figure 2 It is a schematic diagram of the internal structure of the safety feeding device for m-cresol preparation of the present utility model in the initial state;
[0022] Figure 3 It is a schematic diagram of the structure of the safety feeding device for m-cresol preparation of the present utility model when adding solid raw materials into the barrel;
[0023] Figure 4 It is a schematic diagram of the structure of the safety feeding device for m-cresol preparation of the present utility model when the solid raw materials enter the reaction kettle;
[0024] Figure 5 It is a schematic diagram of the surface structure of the upper conical cover of the safety feeding device for m-cresol preparation of the present utility model.
[0025] In the figure: 1, barrel; 2, reaction kettle; 21, material port; 3, hopper; 31, material pipe; 4, first electric push rod; 41, lower conical cover; 5, second electric push rod; 51, upper conical cover; 511, through hole; 512, sealing ring; 6, rubber ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] Please refer to Figures 1-5 , the present utility model provides a technical solution: a safety feeding device for m-cresol preparation, including a barrel 1 and a reaction kettle 2. The structure and working principle of the reaction kettle 2 are the same as those of the existing reaction kettle 2, so no further description will be made here. The barrel 1 is placed above the reaction kettle 2, and the bottom of the barrel 1 is communicated with the inside of the reaction kettle 2 through a material port 21. A hopper 3 is arranged above the side of the barrel 1, and the lower part of the hopper 3 is communicated with the upper part inside the barrel 1 through a material pipe 31. Under normal circumstances, solid raw materials can be put into the hopper 3, and then pass through the barrel 1 and enter the inside of the reaction kettle 2 through the material port 21 to complete the addition of solid raw materials.
[0027] If the above method is used to add solid raw materials, since the barrel 1 is connected to the outside through the material pipe 31 and the hopper 3, harmful gases inside the reaction kettle 2 will leak. To solve this problem, in this application, second electric push rods 5 are vertically installed on both sides of the surface of the barrel 1. The extending end of the second electric push rod 5 penetrates into the barrel 1, and an upper conical cover 51 is fixed at the end of the second electric push rod 5. The outer circle of the upper conical cover 51 is in sealed and slidable contact with the inner wall of the barrel 1. A first electric push rod 4 is vertically installed at the middle position of the surface of the barrel 1. The extending end of the first electric push rod 4 penetrates into the barrel 1 and can slidably penetrate below the upper conical cover 51, and a lower conical cover 41 is fixed at the end of the first electric push rod 4. The outer circle of the lower conical cover 41 is in sealed and slidable contact with the inner wall of the barrel 1.
[0028] No matter what state it is in, the lower conical cover 41 will not move above the opening of the material pipe 31. Therefore, when the lower conical cover 41 is placed inside the lower part of the barrel 1, it can isolate the inside and outside of the reaction kettle 2 to prevent harmful gas leakage. When solid raw materials need to be added, first lower the upper conical cover 51 and the lower conical cover 41 to the inside of the barrel 1 below the opening of the material pipe 31, and then make the lower conical cover 41 enter the reaction kettle 2. At this time, the reaction kettle 2 is isolated from the outside only by the upper conical cover 51 to prevent harmful gas leakage. Then the upper conical cover 51 is lowered to the lowest position. When the upper conical cover 51 is driven by the second electric push rod 5 to the lowest height, the bottom outer circle of the upper conical cover 51 is flush with the bottom of the material port 21, so as to continue to maintain the isolation and sealing effect of the upper conical cover 51. Then make the first electric push rod 4 drive the lower conical cover 41 to rise to touch the bottom surface of the upper conical cover 51. The size of the upper conical cover 51 is the same as that of the lower conical cover 41. When the upper conical cover 51 touches the lower conical cover 41, they are in close contact, so that the harmful gas between the upper conical cover 51 and the lower conical cover 41 can be discharged into the reaction kettle 2 from the side. Then drive the upper conical cover 51 and the lower conical cover 41 to rise to the lower part inside the barrel 1 at the same time. Since there is no harmful gas between them, the upper conical cover 51 can be driven alone to rise above the bottom opening of the material pipe 31. At this time, the lower conical cover 41 plays a role of sealing and isolation, so that solid raw materials can be added from the hopper 3 and the material pipe 31 above the lower conical cover 41 inside the barrel 1. Subsequently, the upper conical cover 51 moves to below the bottom opening of the material pipe 31. At this time, the upper conical cover 51 also participates in the purpose of sealing and isolation, and the lower conical cover 41 can be made to enter the reaction kettle 2, so that the solid raw materials can be guided and dropped into the reaction kettle 2 to complete the addition of solid raw materials. There will be no leakage of harmful gases during the whole addition process.
[0029] Rubber rings 6 are fixedly arranged around the outer circles of the upper conical cover 51 and the lower conical cover 41. When the upper conical cover 51 and the lower conical cover 41 are placed inside the barrel 1, the rubber rings 6 are in contact with the inner wall surface of the barrel 1, so as to realize the sealed and slidable contact between the outer circles of the upper conical cover 51 or the lower conical cover 41 and the inner wall of the barrel 1.
[0030] A through hole 511 is provided at the middle position of the upper conical cover 51. The first electric push rod 4 passes through the upper conical cover 51 through the through hole 511. A sealing ring 512 is fixedly attached to the inner surface of the inner ring of the through hole 511. The sealing ring 512 touches the outer surface of the extended end of the first electric push rod 4, ensuring the sealing effect at the penetration position when the first electric push rod 4 slides through the upper conical cover 51.
[0031] During use, first, the first electric push rod 4 drives the lower conical cover 41 to descend into the reaction kettle 2 below the material cylinder 1. Then, control the second electric push rod 5 to drive the upper conical cover 51 to lower its height, so that the upper conical cover 51 descends to the bottom of the material cylinder 1, and prevent the upper conical cover 51 from entering the reaction kettle 2. Then, control the first electric push rod 4 to drive the lower conical cover 41 to rise to a position where its upper surface tightly adheres to the lower surface of the upper conical cover 51 and is in Figure 2 a state, thereby discharging the gas between the upper conical cover 51 and the lower conical cover 41. After that, simultaneously drive the upper conical cover 51 and the lower conical cover 41 to rise in height, and make the lower conical cover 41 located inside the lower part of the material cylinder 1, while the upper conical cover 51 rises to the uppermost position inside the material cylinder 1 and is in Figure 3 a state. After that, solid raw materials can be added from the hopper 3, enter the hopper 3 through the material pipe 31, and be placed above the lower conical cover 41. Then, control the upper conical cover 51 to lower its height into the material cylinder 1 below the bottom opening of the material pipe 31. After that, drive the lower conical cover 41 to descend into the reaction kettle 2 and be in Figure 4 a state. At this time, the solid raw materials can enter the reaction kettle 2 under the guidance of the lower conical cover 41, completing the addition of the solid raw materials. When adding again, the above operations can be repeated. During the whole process of adding raw materials, it will not cause the leakage of harmful gases inside the reaction kettle 2 and cause pollution.
Claims
1. A safety feeding device for preparing m-cresol, comprising a feed cylinder (1) and a reaction kettle (2), characterized in that: The said barrel (1) is placed above the reaction kettle (2), and the bottom of the barrel (1) is communicated with the inside of the reaction kettle (2) through a material port (21). A hopper (3) is arranged above the side of the barrel (1), and the lower part of the hopper (3) is communicated with the inside above the barrel (1) through a material pipe (31). On both sides of the surface of the said barrel (1), second electric push rods (5) are vertically installed. The extending end of the second electric push rod (5) penetrates into the barrel (1) internally, and an upper conical cover (51) is fixed at the end of the second electric push rod (5). The outer ring of the upper conical cover (51) is in sealed and slidable contact with the inner wall of the barrel (1). At the middle position of the surface of the barrel (1), a first electric push rod (4) is vertically installed. The extending end of the first electric push rod (4) penetrates into the barrel (1) internally and can slidably penetrate below the upper conical cover (51), and a lower conical cover (41) is fixed at the end of the first electric push rod (4). The outer ring of the lower conical cover (41) is in sealed and slidable contact with the inner wall of the barrel (1).
2. The safe feeding device for m-cresol preparation according to claim 1, characterized in that: Rubber rings (6) are fixedly arranged around the outer rings of the said upper conical cover (51) and the lower conical cover (41). When the upper conical cover (51) and the lower conical cover (41) are placed inside the barrel (1), the rubber rings (6) are in contact with the surface of the inner wall of the barrel (1).
3. The safe feeding device for m-cresol preparation according to claim 1, characterized in that: The sizes of the said upper conical cover (51) and the lower conical cover (41) are the same. When the upper conical cover (51) is in contact with the lower conical cover (41), they are in close contact with each other.
4. The safe feeding device for preparing m-cresol according to claim 1, characterized in that: When the upper conical cover (51) is driven by the second electric push rod (5) to lower to the lowest height, the bottom outer ring of the upper conical cover (51) is flush with the bottom of the material port (21).
5. The safety feeding device for m-cresol preparation according to claim 1, characterized in that: A through hole (511) is formed at the middle position of the said upper conical cover (51), and the first electric push rod (4) penetrates through the upper conical cover (51) through the through hole (511).
6. The safe feeding device for preparing m-cresol according to claim 5, wherein: A sealing ring (512) is fixedly attached to the inner ring surface of the said through hole (511), and the sealing ring (512) is in contact with the outer ring surface of the extending end of the first electric push rod (4).